{"id":2657,"date":"2025-03-24T08:46:50","date_gmt":"2025-03-23T23:46:50","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2657"},"modified":"2025-03-24T08:47:19","modified_gmt":"2025-03-23T23:47:19","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91laravel-%e3%83%9e%e3%82%a4%e3%82%b0%e3%83%ac%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e4%bd%9c%e6%88%90%e3%81%ae%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2657","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011Laravel \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u4f5c\u6210\u306e\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u521d\u5fc3\u8005\u3067\u30823\u5206\u3067\u7406\u89e3\u3067\u304d\u308b"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u306f\uff1f\u57fa\u790e\u304b\u3089\u7406\u89e3\u3059\u308b\u91cd\u8981\u6027<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3068\u3057\u3066\u306e\u5f79\u5272<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u30c1\u30fc\u30e0\u958b\u767a\u306b\u304a\u3051\u308b\u91cd\u8981\u6027\u3068\u5229\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u624b\u9806<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">artisan\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u57fa\u672c\u7684\u306a\u4f5c\u6210\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u30c6\u30fc\u30d6\u30eb\u540d\u3068\u30ab\u30e9\u30e0\u306e\u547d\u540d\u898f\u5247\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">\u3088\u304f\u4f7f\u7528\u3059\u308b\u30ab\u30e9\u30e0\u5b9a\u7fa9\u3068\u30aa\u30d7\u30b7\u30e7\u30f3\u8a2d\u5b9a<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">\u4e3b\u8981\u306a\u30ab\u30e9\u30e0\u30bf\u30a4\u30d7\u3068\u305d\u306e\u4f7f\u3044\u5206\u3051<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-16\">\u5236\u7d04\u3068\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u52b9\u679c\u7684\u306a\u8a2d\u5b9a\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-21\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-22\">\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u306e\u6b63\u3057\u3044\u8a2d\u5b9a\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">\u591a\u5bfe\u591a\u95a2\u4fc2\u306e\u30d4\u30dc\u30c3\u30c8\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-30\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-31\">\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-35\">\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u6642\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-39\">\u30c8\u30e9\u30d6\u30eb\u9632\u6b62\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-40\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u904b\u7528\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-41\">\u672c\u756a\u74b0\u5883\u3067\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9f\u884c\u6642\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-45\">\u65e2\u5b58\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u306a\u79fb\u884c\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-48\">\u904b\u7528\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u7dcf\u307e\u3068\u3081<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u306f\uff1f\u57fa\u790e\u304b\u3089\u7406\u89e3\u3059\u308b\u91cd\u8981\u6027<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u306f\u73fe\u4ee3\u306eWeb\u958b\u767a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u304c\u3001\u305d\u306e\u5909\u66f4\u7ba1\u7406\u306f\u5e38\u306b\u8ab2\u984c\u3068\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u3002Laravel\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u6a5f\u80fd\u306f\u3001\u3053\u306e\u8ab2\u984c\u306b\u5bfe\u3059\u308b\u52b9\u679c\u7684\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3068\u3057\u3066\u306e\u5f79\u5272<\/h3>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u5909\u66f4\u3092\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3053\u308c\u306f\u3001Git\u3067\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u7ba1\u7406\u3059\u308b\u306e\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u5909\u66f4\u3092\u8ffd\u8de1\u53ef\u80fd\u306a\u5f62\u3067\u7ba1\u7406\u3059\u308b\u624b\u6cd5\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4e3b\u306a\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306b\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304c\u4ed8\u4e0e\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u5909\u66f4\u5c65\u6b74\u3092\u6642\u7cfb\u5217\u3067\u8ffd\u8de1\u53ef\u80fd<\/li>\n\n\n\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u7279\u5b9a\u306e\u6642\u70b9\u307e\u3067\u623b\u3059\u3053\u3068\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u51aa\u7b49\u6027\u306e\u4fdd\u8a3c<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540c\u3058\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u8907\u6570\u56de\u5b9f\u884c\u3057\u3066\u3082\u5b89\u5168<\/li>\n\n\n\n<li><code>php artisan migrate:status<\/code> \u3067\u5b9f\u884c\u72b6\u6cc1\u3092\u78ba\u8a8d\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u81ea\u52d5\u5316\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   # \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\n   php artisan migrate\n\n   # \u76f4\u524d\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5143\u306b\u623b\u3059\n   php artisan migrate:rollback\n\n   # \u5168\u3066\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5143\u306b\u623b\u3059\n   php artisan migrate:reset\n\n   # \u5168\u3066\u3092\u5143\u306b\u623b\u3057\u3066\u304b\u3089\u518d\u5ea6\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\n   php artisan migrate:refresh<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u30c1\u30fc\u30e0\u958b\u767a\u306b\u304a\u3051\u308b\u91cd\u8981\u6027\u3068\u5229\u70b9<\/h3>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u6a5f\u80fd\u306f\u3001\u7279\u306b\u30c1\u30fc\u30e0\u958b\u767a\u306b\u304a\u3044\u3066\u5927\u304d\u306a\u4fa1\u5024\u3092\u767a\u63ee\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u74b0\u5883\u9593\u306e\u4e00\u8cab\u6027\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u958b\u767a\u74b0\u5883<\/li>\n\n\n\n<li>\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883<\/li>\n\n\n\n<li>\u672c\u756a\u74b0\u5883 \u3059\u3079\u3066\u306e\u74b0\u5883\u3067\u540c\u3058\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u3092\u4fdd\u8a3c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u52b9\u7387\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f8b\n   public function up()\n   {\n       Schema::create('users', function (Blueprint $table) {\n           $table-&gt;id();\n           $table-&gt;string('name');\n           $table-&gt;string('email')-&gt;unique();\n           $table-&gt;timestamp('email_verified_at')-&gt;nullable();\n           $table-&gt;string('password');\n           $table-&gt;rememberToken();\n           $table-&gt;timestamps();\n       });\n   }<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5909\u66f4\u3092\u30b3\u30fc\u30c9\u3068\u3057\u3066\u78ba\u8a8d\u53ef\u80fd<\/li>\n\n\n\n<li>\u5909\u66f4\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u7406\u89e3\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u4e8b\u524d\u306b\u767a\u898b\u3067\u304d\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u306e\u5b89\u5168\u6027\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b9\u30ad\u30fc\u30de\u5909\u66f4\u3092\u81ea\u52d5\u5316<\/li>\n\n\n\n<li>\u624b\u52d5\u64cd\u4f5c\u306b\u3088\u308b\u30df\u30b9\u3092\u9632\u6b62<\/li>\n\n\n\n<li>\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u6a5f\u80fd\u306b\u3088\u308b\u5b89\u5168\u6027\u78ba\u4fdd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u306e\u5f79\u5272<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u306e\u5909\u9077\u3092\u8a18\u9332<\/li>\n\n\n\n<li>\u65b0\u898f\u30e1\u30f3\u30d0\u30fc\u306e\u53c2\u753b\u6642\u306e\u7406\u89e3\u4fc3\u9032<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u306e\u6210\u9577\u5c65\u6b74\u306e\u53ef\u8996\u5316<\/li>\n<\/ul>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u306e\u52b9\u7387\u6027\u3068\u5b89\u5168\u6027\u304c\u5927\u304d\u304f\u5411\u4e0a\u3057\u3001\u30c1\u30fc\u30e0\u5168\u4f53\u306e\u751f\u7523\u6027\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u624b\u9806<\/h2>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u306f\u3001Laravel\u306e<code>artisan<\/code>\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u7c21\u5358\u306b\u884c\u3048\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u57fa\u672c\u7684\u306a\u4f5c\u6210\u65b9\u6cd5\u304b\u3089\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u307e\u3067\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">artisan\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u57fa\u672c\u7684\u306a\u4f5c\u6210\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">1. \u57fa\u672c\u7684\u306a\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u57fa\u672c\u7684\u306a\u69cb\u6587\nphp artisan make:migration create_users_table\n\n# \u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u3092\u542b\u3080\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\nphp artisan make:migration create_users_table --create=users\n\n# \u65e2\u5b58\u30c6\u30fc\u30d6\u30eb\u306e\u5909\u66f4\u3092\u542b\u3080\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\nphp artisan make:migration add_phone_to_users_table --table=users<\/pre>\n\n\n\n<p>\u751f\u6210\u3055\u308c\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u57fa\u672c\u69cb\u9020\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;?php\n\nuse Illuminate\\Database\\Migrations\\Migration;\nuse Illuminate\\Database\\Schema\\Blueprint;\nuse Illuminate\\Support\\Facades\\Schema;\n\nclass CreateUsersTable extends Migration\n{\n    \/**\n     * \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\n     *\/\n    public function up()\n    {\n        Schema::create('users', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;timestamps();\n        });\n    }\n\n    \/**\n     * \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5dfb\u304d\u623b\u3057\n     *\/\n    public function down()\n    {\n        Schema::dropIfExists('users');\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">2. \u3088\u304f\u4f7f\u7528\u3059\u308bartisan\u30b3\u30de\u30f3\u30c9\u30aa\u30d7\u30b7\u30e7\u30f3<\/h4>\n\n\n<div id=\"id-5b1b3e57-1a0f-4941-8fea-dc5a5a03af9f\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30aa\u30d7\u30b7\u30e7\u30f3<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u2013create=<\/td><td>\u65b0\u898f\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u7528<\/td><td><code>--create=products<\/code><\/td><\/tr><tr><td>\u2013table=<\/td><td>\u65e2\u5b58\u30c6\u30fc\u30d6\u30eb\u5909\u66f4\u7528<\/td><td><code>--table=users<\/code><\/td><\/tr><tr><td>\u2013path=<\/td><td>\u4fdd\u5b58\u5148\u306e\u6307\u5b9a<\/td><td><code>--path=database\/migrations\/custom<\/code><\/td><\/tr><tr><td>\u2013fullpath<\/td><td>\u30d5\u30eb\u30d1\u30b9\u3067\u4fdd\u5b58\u5148\u6307\u5b9a<\/td><td><code>--fullpath=\/absolute\/path<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30c6\u30fc\u30d6\u30eb\u540d\u3068\u30ab\u30e9\u30e0\u306e\u547d\u540d\u898f\u5247\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-8\">1. \u30c6\u30fc\u30d6\u30eb\u540d\u306e\u547d\u540d\u898f\u5247<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8907\u6570\u5f62\u3092\u4f7f\u7528\u3059\u308b<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ Good\n  Schema::create('users', function (Blueprint $table) {\n\n  \/\/ Not Recommended\n  Schema::create('user', function (Blueprint $table) {<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b9\u30cd\u30fc\u30af\u30b1\u30fc\u30b9\u3092\u4f7f\u7528\u3059\u308b<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ Good\n  Schema::create('order_items', function (Blueprint $table) {\n\n  \/\/ Not Recommended\n  Schema::create('orderItems', function (Blueprint $table) {<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e2d\u9593\u30c6\u30fc\u30d6\u30eb\u306e\u547d\u540d<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ Good: \u5358\u6570\u5f62_\u5358\u6570\u5f62\u306e\u5f62\u5f0f\u3067\u3001\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u9806\n  Schema::create('product_user', function (Blueprint $table) {\n\n  \/\/ Not Recommended\n  Schema::create('users_products', function (Blueprint $table) {<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-9\">2. \u30ab\u30e9\u30e0\u540d\u306e\u547d\u540d\u898f\u5247<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('users', function (Blueprint $table) {\n    \/\/ \u4e3b\u30ad\u30fc\n    $table-&gt;id();                          \/\/ Good: \u81ea\u52d5\u7684\u306b'id'\u3068\u3044\u3046\u540d\u524d\u306b\u306a\u308b\n\n    \/\/ \u5916\u90e8\u30ad\u30fc\n    $table-&gt;foreignId('company_id');       \/\/ Good: \u53c2\u7167\u5148\u30c6\u30fc\u30d6\u30eb\u540d\u306e\u5358\u6570\u5f62_id\n\n    \/\/ \u4e00\u822c\u7684\u306a\u30ab\u30e9\u30e0\n    $table-&gt;string('first_name');          \/\/ Good: \u30b9\u30cd\u30fc\u30af\u30b1\u30fc\u30b9\n    $table-&gt;string('lastName');            \/\/ Not Recommended: \u30ad\u30e3\u30e1\u30eb\u30b1\u30fc\u30b9\n\n    \/\/ \u30d6\u30fc\u30eb\u5024\u3092\u8868\u3059\u30ab\u30e9\u30e0\n    $table-&gt;boolean('is_active');          \/\/ Good: is_\u3084has_\u304b\u3089\u59cb\u3081\u308b\n    $table-&gt;boolean('active');             \/\/ Not Recommended: \u5f62\u5bb9\u8a5e\u306e\u307f\n\n    \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\n    $table-&gt;timestamp('published_at');     \/\/ Good: _at\u63a5\u5c3e\u8f9e\n    $table-&gt;timestamps();                  \/\/ created_at, updated_at\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">3. \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u547d\u540d\u898f\u5247<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('products', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('sku')-&gt;unique();\n    $table-&gt;string('name');\n\n    \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u660e\u793a\u7684\u306a\u540d\u524d\u3092\u4ed8\u3051\u308b\n    $table-&gt;index('name', 'products_name_index');        \/\/ Good\n    $table-&gt;unique('sku', 'products_sku_unique');        \/\/ Good\n\n    \/\/ \u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\n    $table-&gt;index(['sku', 'name'], 'products_sku_name_index');\n});<\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u547d\u540d\u898f\u5247\u3092\u5b88\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u5185\u3067\u306e\u4e00\u8cab\u6027\u78ba\u4fdd<\/li>\n\n\n\n<li>\u5c06\u6765\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u306e\u54c1\u8cea\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306e\u30ab\u30e9\u30e0\u5b9a\u7fa9\u3068\u305d\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-11\">\u3088\u304f\u4f7f\u7528\u3059\u308b\u30ab\u30e9\u30e0\u5b9a\u7fa9\u3068\u30aa\u30d7\u30b7\u30e7\u30f3\u8a2d\u5b9a<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001\u9069\u5207\u306a\u30ab\u30e9\u30e0\u5b9a\u7fa9\u3068\u30aa\u30d7\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u5b9f\u52d9\u3067\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u308b\u8a2d\u5b9a\u3068\u305d\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u4e3b\u8981\u306a\u30ab\u30e9\u30e0\u30bf\u30a4\u30d7\u3068\u305d\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">1. \u57fa\u672c\u7684\u306a\u30ab\u30e9\u30e0\u30bf\u30a4\u30d7<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('products', function (Blueprint $table) {\n    \/\/ \u6570\u5024\u578b\n    $table-&gt;id();                    \/\/ bigint, auto_increment\n    $table-&gt;integer('stock');        \/\/ \u4e00\u822c\u7684\u306a\u6574\u6570\n    $table-&gt;bigInteger('views');     \/\/ \u5927\u304d\u306a\u6574\u6570\u5024\n    $table-&gt;decimal('price', 8, 2);  \/\/ \u5c0f\u6570\u70b9\u4ed8\u304d\u6570\u5024\uff08\u7dcf\u6841\u65708\u3001\u5c0f\u6570\u70b92\u6841\uff09\n\n    \/\/ \u6587\u5b57\u5217\u578b\n    $table-&gt;string('name', 100);     \/\/ VARCHAR(100)\n    $table-&gt;text('description');     \/\/ TEXT\u578b\n    $table-&gt;longText('content');     \/\/ LONGTEXT\u578b\n\n    \/\/ \u771f\u507d\u5024\u30fb\u65e5\u6642\n    $table-&gt;boolean('is_active');    \/\/ BOOLEAN\u578b\n    $table-&gt;timestamp('posted_at');  \/\/ TIMESTAMP\u578b\n    $table-&gt;timestamps();            \/\/ created_at, updated_at\n\n    \/\/ JSON\u30fb\u914d\u5217\n    $table-&gt;json('options');         \/\/ JSON\u578b\n    $table-&gt;jsonb('settings');       \/\/ JSONB\u578b\uff08PostgreSQL\u306e\u5834\u5408\uff09\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-14\">2. \u7279\u6b8a\u306a\u30ab\u30e9\u30e0\u30bf\u30a4\u30d7<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('documents', function (Blueprint $table) {\n    $table-&gt;uuid('id')-&gt;primary();   \/\/ UUID\u578b\n    $table-&gt;ulid('tracking_id');     \/\/ ULID\u578b\n    $table-&gt;year('fiscal_year');     \/\/ YEAR\u578b\n    $table-&gt;enum('status', ['draft', 'published', 'archived']); \/\/ ENUM\u578b\n    $table-&gt;ipAddress('visitor_ip'); \/\/ IP\u30a2\u30c9\u30ec\u30b9\u7528\n    $table-&gt;macAddress('device_mac');\/\/ MAC\u30a2\u30c9\u30ec\u30b9\u7528\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">\u30ab\u30e9\u30e0\u30bf\u30a4\u30d7\u306e\u9078\u629e\u30ac\u30a4\u30c9<\/h4>\n\n\n<div id=\"id-65a8ecd4-4cbf-4276-af68-6c0602218852\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30c7\u30fc\u30bf\u306e\u7a2e\u985e<\/th><th>\u63a8\u5968\u30ab\u30e9\u30e0\u30bf\u30a4\u30d7<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>ID\/\u4e3b\u30ad\u30fc<\/td><td>id(), bigIncrements()<\/td><td>\u30e6\u30fc\u30b6\u30fcID\u3001\u5546\u54c1ID<\/td><\/tr><tr><td>\u901a\u5e38\u306e\u6574\u6570<\/td><td>integer()<\/td><td>\u5728\u5eab\u6570\u3001\u5e74\u9f62<\/td><\/tr><tr><td>\u91d1\u984d<\/td><td>decimal()<\/td><td>\u5546\u54c1\u4fa1\u683c\u3001\u53d6\u5f15\u984d<\/td><\/tr><tr><td>\u77ed\u3044\u6587\u5b57\u5217<\/td><td>string()<\/td><td>\u540d\u524d\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9<\/td><\/tr><tr><td>\u9577\u3044\u6587\u5b57\u5217<\/td><td>text()<\/td><td>\u5546\u54c1\u8aac\u660e\u3001\u8a18\u4e8b\u672c\u6587<\/td><\/tr><tr><td>\u771f\u507d\u5024<\/td><td>boolean()<\/td><td>\u30b9\u30c6\u30fc\u30bf\u30b9\u30d5\u30e9\u30b0<\/td><\/tr><tr><td>\u65e5\u6642<\/td><td>timestamp()<\/td><td>\u6295\u7a3f\u65e5\u6642\u3001\u66f4\u65b0\u65e5\u6642<\/td><\/tr><tr><td>\u69cb\u9020\u5316\u30c7\u30fc\u30bf<\/td><td>json()<\/td><td>\u8a2d\u5b9a\u5024\u3001\u5c5e\u6027\u60c5\u5831<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u5236\u7d04\u3068\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u52b9\u679c\u7684\u306a\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">1. \u4e00\u822c\u7684\u306a\u5236\u7d04\u306e\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('orders', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('order_number')-&gt;unique();  \/\/ \u30e6\u30cb\u30fc\u30af\u5236\u7d04\n    $table-&gt;string('customer_name')-&gt;nullable();\/\/ NULL\u8a31\u53ef\n    $table-&gt;decimal('total', 10, 2)-&gt;default(0.00); \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\n    $table-&gt;enum('status', ['pending', 'completed', 'cancelled'])\n          -&gt;default('pending');                \/\/ ENUM\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\n\n    \/\/ \u5916\u90e8\u30ad\u30fc\u5236\u7d04\n    $table-&gt;foreignId('user_id')\n          -&gt;constrained()\n          -&gt;onDelete('cascade');\n\n    \/\/ \u8907\u5408\u30e6\u30cb\u30fc\u30af\u5236\u7d04\n    $table-&gt;unique(['user_id', 'order_number']);\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">2. \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('articles', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('title');\n    $table-&gt;string('slug');\n    $table-&gt;text('content');\n    $table-&gt;timestamp('published_at')-&gt;nullable();\n    $table-&gt;foreignId('category_id');\n\n    \/\/ \u691c\u7d22\u52b9\u7387\u5316\u306e\u305f\u3081\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\n    $table-&gt;index('title');          \/\/ \u30bf\u30a4\u30c8\u30eb\u3067\u306e\u691c\u7d22\u7528\n    $table-&gt;index('published_at');   \/\/ \u516c\u958b\u65e5\u3067\u306e\u7d5e\u308a\u8fbc\u307f\u7528\n\n    \/\/ \u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08\u8907\u6570\u30ab\u30e9\u30e0\u3067\u306e\u691c\u7d22\u6700\u9069\u5316\uff09\n    $table-&gt;index(['category_id', 'published_at']);\n\n    \/\/ \u30e6\u30cb\u30fc\u30af\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\n    $table-&gt;unique('slug');\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-19\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u8a2d\u5b9a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4ed8\u3051\u308b\u3079\u304d\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>WHERE\u53e5\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30ab\u30e9\u30e0<\/li>\n\n\n\n<li>JOIN\u6761\u4ef6\u3067\u4f7f\u7528\u3055\u308c\u308b\u30ab\u30e9\u30e0<\/li>\n\n\n\n<li>ORDER BY\u53e5\u3067\u30bd\u30fc\u30c8\u3055\u308c\u308b\u30ab\u30e9\u30e0<\/li>\n\n\n\n<li>UNIQUE\u5236\u7d04\u304c\u5fc5\u8981\u306a\u30ab\u30e9\u30e0<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u907f\u3051\u308b\u3079\u304d\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u66f4\u65b0\u304c\u983b\u7e41\u306b\u884c\u308f\u308c\u308b\u30ab\u30e9\u30e0<\/li>\n\n\n\n<li>\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\uff08\u5024\u306e\u7a2e\u985e\uff09\u304c\u5c11\u306a\u3044\u30ab\u30e9\u30e0<\/li>\n\n\n\n<li>\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3044\u5834\u5408<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u5236\u7d04\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('large_data_table', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('code', 20);\n    $table-&gt;text('data');\n\n    \/\/ \u30d1\u30fc\u30b7\u30e3\u30eb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff08PostgreSQL\u306e\u5834\u5408\uff09\n    $table-&gt;index('code')-&gt;where('deleted_at IS NULL');\n\n    \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30bf\u30a4\u30d7\u306e\u6307\u5b9a\n    $table-&gt;spatialIndex('location');     \/\/ \u7a7a\u9593\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\n    $table-&gt;fullText('content');          \/\/ \u5168\u6587\u691c\u7d22\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\n});<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u4fdd\u8a3c<\/li>\n\n\n\n<li>\u691c\u7d22\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30b9\u30c8\u30ec\u30fc\u30b8\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4fe1\u983c\u6027\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u8a2d\u5b9a\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u3001\u3088\u308a\u8907\u96d1\u306a\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306e\u5b9f\u88c5\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-21\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u95a2\u4fc2\u3092\u9069\u5207\u306b\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001Laravel\u3067\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306e\u5b9f\u88c5\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u4ea4\u3048\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u306e\u6b63\u3057\u3044\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">1. \u57fa\u672c\u7684\u306a\u5916\u90e8\u30ad\u30fc\u306e\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e6\u30fc\u30b6\u30fc\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\nSchema::create('users', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('name');\n    $table-&gt;string('email')-&gt;unique();\n    $table-&gt;timestamps();\n});\n\n\/\/ \u6295\u7a3f\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\uff08\u30e6\u30fc\u30b6\u30fc\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u5916\u90e8\u30ad\u30fc\u8a2d\u5b9a\uff09\nSchema::create('posts', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('title');\n    $table-&gt;text('content');\n\n    \/\/ \u57fa\u672c\u7684\u306a\u5916\u90e8\u30ad\u30fc\u8a2d\u5b9a\n    $table-&gt;foreignId('user_id')\n          -&gt;constrained()\n          -&gt;onDelete('cascade')\n          -&gt;onUpdate('cascade');\n\n    $table-&gt;timestamps();\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">2. \u30ab\u30b9\u30b1\u30fc\u30c9\u52d5\u4f5c\u306e\u4f7f\u3044\u5206\u3051<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('departments', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('name');\n    $table-&gt;timestamps();\n});\n\nSchema::create('employees', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('name');\n\n    \/\/ CASCADE: \u90e8\u9580\u304c\u524a\u9664\u3055\u308c\u305f\u3089\u3001\u6240\u5c5e\u793e\u54e1\u3082\u524a\u9664\n    $table-&gt;foreignId('department_id')\n          -&gt;constrained()\n          -&gt;onDelete('cascade');\n});\n\nSchema::create('projects', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('name');\n\n    \/\/ SET NULL: \u90e8\u9580\u304c\u524a\u9664\u3055\u308c\u3066\u3082\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u6b8b\u3059\n    $table-&gt;foreignId('department_id')\n          -&gt;nullable()\n          -&gt;constrained()\n          -&gt;onDelete('set null');\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">3. \u547d\u540d\u898f\u5247\u304c\u7570\u306a\u308b\u5834\u5408\u306e\u5916\u90e8\u30ad\u30fc\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Schema::create('articles', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('title');\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30ad\u30fc\u540d\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\n    $table-&gt;unsignedBigInteger('author_id');\n    $table-&gt;foreign('author_id')\n          -&gt;references('id')\n          -&gt;on('users')\n          -&gt;onDelete('restrict');\n\n    \/\/ \u307e\u305f\u306f\u3001foreignId\u3067\u3082\u30ab\u30b9\u30bf\u30e0\u8a2d\u5b9a\u53ef\u80fd\n    $table-&gt;foreignId('author_id')\n          -&gt;constrained('users')\n          -&gt;onDelete('restrict');\n});<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-26\">\u591a\u5bfe\u591a\u95a2\u4fc2\u306e\u30d4\u30dc\u30c3\u30c8\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-27\">1. \u57fa\u672c\u7684\u306a\u30d4\u30dc\u30c3\u30c8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30bf\u30b0\u30c6\u30fc\u30d6\u30eb\nSchema::create('tags', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('name');\n    $table-&gt;timestamps();\n});\n\n\/\/ \u6295\u7a3f\u3068\u30bf\u30b0\u306e\u4e2d\u9593\u30c6\u30fc\u30d6\u30eb\nSchema::create('post_tag', function (Blueprint $table) {\n    \/\/ \u8907\u5408\u4e3b\u30ad\u30fc\u306e\u8a2d\u5b9a\n    $table-&gt;foreignId('post_id')-&gt;constrained()-&gt;onDelete('cascade');\n    $table-&gt;foreignId('tag_id')-&gt;constrained()-&gt;onDelete('cascade');\n\n    \/\/ \u540c\u3058\u7d44\u307f\u5408\u308f\u305b\u3092\u9632\u3050\n    $table-&gt;primary(['post_id', 'tag_id']);\n\n    \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u8ffd\u52a0\n    $table-&gt;timestamps();\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">2. \u8ffd\u52a0\u30c7\u30fc\u30bf\u3092\u6301\u3064\u30d4\u30dc\u30c3\u30c8\u30c6\u30fc\u30d6\u30eb<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5546\u54c1\u30c6\u30fc\u30d6\u30eb\nSchema::create('products', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('name');\n    $table-&gt;decimal('price', 10, 2);\n    $table-&gt;timestamps();\n});\n\n\/\/ \u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\nSchema::create('orders', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;foreignId('user_id')-&gt;constrained();\n    $table-&gt;timestamp('ordered_at');\n    $table-&gt;timestamps();\n});\n\n\/\/ \u6ce8\u6587\u8a73\u7d30\uff08\u30d4\u30dc\u30c3\u30c8\u30c6\u30fc\u30d6\u30eb with \u8ffd\u52a0\u30c7\u30fc\u30bf\uff09\nSchema::create('order_product', function (Blueprint $table) {\n    $table-&gt;foreignId('order_id')-&gt;constrained()-&gt;onDelete('cascade');\n    $table-&gt;foreignId('product_id')-&gt;constrained()-&gt;onDelete('restrict');\n\n    \/\/ \u8ffd\u52a0\u306e\u5c5e\u6027\n    $table-&gt;integer('quantity');\n    $table-&gt;decimal('price_at_time', 10, 2);  \/\/ \u8cfc\u5165\u6642\u306e\u4fa1\u683c\n    $table-&gt;json('product_options')-&gt;nullable();\n\n    $table-&gt;primary(['order_id', 'product_id']);\n    $table-&gt;timestamps();\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">3. \u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30c3\u30af\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30b3\u30e1\u30f3\u30c8\u53ef\u80fd\u306a\u6295\u7a3f\u30c6\u30fc\u30d6\u30eb\nSchema::create('posts', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;string('title');\n    $table-&gt;text('content');\n    $table-&gt;timestamps();\n});\n\n\/\/ \u30b3\u30e1\u30f3\u30c8\u53ef\u80fd\u306a\u5546\u54c1\u30ec\u30d3\u30e5\u30fc\u30c6\u30fc\u30d6\u30eb\nSchema::create('reviews', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;foreignId('product_id')-&gt;constrained();\n    $table-&gt;text('content');\n    $table-&gt;integer('rating');\n    $table-&gt;timestamps();\n});\n\n\/\/ \u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30c3\u30af\u306a\u30b3\u30e1\u30f3\u30c8\u30c6\u30fc\u30d6\u30eb\nSchema::create('comments', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;text('content');\n\n    \/\/ \u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30c3\u30af\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u7528\u306e\u30ab\u30e9\u30e0\n    $table-&gt;morphs('commentable');\n    \/\/ \u307e\u305f\u306f\u3001UUID\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\n    \/\/ $table-&gt;uuidMorphs('commentable');\n\n    $table-&gt;foreignId('user_id')-&gt;constrained();\n    $table-&gt;timestamps();\n});<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u6642\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u547d\u540d\u898f\u5247\u306e\u4e00\u8cab\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5916\u90e8\u30ad\u30fc\u306f<code>\u30c6\u30fc\u30d6\u30eb\u540d\u306e\u5358\u6570\u5f62_id<\/code><\/li>\n\n\n\n<li>\u30d4\u30dc\u30c3\u30c8\u30c6\u30fc\u30d6\u30eb\u306f<code>\u30c6\u30fc\u30d6\u30eb\u540dA_\u30c6\u30fc\u30d6\u30eb\u540dB<\/code>\u306e\u5f62\u5f0f\uff08\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u9806\uff09<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9069\u5207\u306a\u5236\u7d04\u306e\u9078\u629e<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>cascade<\/code>: \u89aa\u30ec\u30b3\u30fc\u30c9\u306e\u524a\u9664\u306b\u9023\u52d5<\/li>\n\n\n\n<li><code>restrict<\/code>: \u89aa\u30ec\u30b3\u30fc\u30c9\u306e\u524a\u9664\u3092\u9632\u6b62<\/li>\n\n\n\n<li><code>set null<\/code>: \u89aa\u30ec\u30b3\u30fc\u30c9\u304c\u524a\u9664\u3055\u308c\u305f\u3089null\u306b\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5916\u90e8\u30ad\u30fc\u306b\u306f\u81ea\u52d5\u7684\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u4f5c\u6210\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u660e\u793a\u7684\u306b\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9069\u5207\u306a<code>onDelete<\/code>\/<code>onUpdate<\/code>\u5236\u7d04\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30e6\u30cb\u30fc\u30af\u5236\u7d04\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>NULL\u8a31\u5bb9\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u306b\u95a2\u9023\u3057\u3066\u767a\u751f\u3057\u304c\u3061\u306a\u30c8\u30e9\u30d6\u30eb\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-30\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u4e2d\u306b\u69d8\u3005\u306a\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u9069\u5207\u306a\u5bfe\u51e6\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u30b9\u30e0\u30fc\u30ba\u306b\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-31\">\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">1. \u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u95a2\u9023\u306e\u30a8\u30e9\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30a8\u30e9\u30fc\u4f8b1: \u30c6\u30fc\u30d6\u30eb\u304c\u65e2\u306b\u5b58\u5728\u3059\u308b\nSQLSTATE[42S01]: Base table or view already exists: 1050 Table 'users' already exists\n\n# \u89e3\u6c7a\u65b9\u6cd5\nSchema::dropIfExists('users');  \/\/ \u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u524d\u306b\u78ba\u5b9f\u306b\u524a\u9664<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5b89\u5168\u306a\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u30d1\u30bf\u30fc\u30f3\npublic function up()\n{\n    if (!Schema::hasTable('users')) {\n        Schema::create('users', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;string('name');\n            $table-&gt;timestamps();\n        });\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-33\">2. \u5916\u90e8\u30ad\u30fc\u5236\u7d04\u95a2\u9023\u306e\u30a8\u30e9\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30a8\u30e9\u30fc\u4f8b2: \u53c2\u7167\u5148\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u5b58\u5728\u3057\u306a\u3044\nSQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u89e3\u6c7a\u65b9\u6cd51: \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u9806\u5e8f\u3092\u5236\u5fa1\nclass CreatePostsTable extends Migration\n{\n    public function up()\n    {\n        \/\/ \u53c2\u7167\u5148\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u78ba\u5b9f\u306b\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\n        if (!Schema::hasTable('users')) {\n            throw new \\Exception('Users table does not exist');\n        }\n\n        Schema::create('posts', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;foreignId('user_id')-&gt;constrained();\n            $table-&gt;timestamps();\n        });\n    }\n}<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u89e3\u6c7a\u65b9\u6cd52: \u5916\u90e8\u30ad\u30fc\u3092\u5225\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u8ffd\u52a0\n\/\/ 1. \u307e\u305a\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\nSchema::create('posts', function (Blueprint $table) {\n    $table-&gt;id();\n    $table-&gt;unsignedBigInteger('user_id');\n    $table-&gt;timestamps();\n});\n\n\/\/ 2. \u5f8c\u304b\u3089\u5916\u90e8\u30ad\u30fc\u3092\u8ffd\u52a0\nSchema::table('posts', function (Blueprint $table) {\n    $table-&gt;foreign('user_id')\n          -&gt;references('id')\n          -&gt;on('users')\n          -&gt;onDelete('cascade');\n});<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">3. \u30ab\u30e9\u30e0\u5909\u66f4\u95a2\u9023\u306e\u30a8\u30e9\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30a8\u30e9\u30fc\u4f8b3: \u30ab\u30e9\u30e0\u5909\u66f4\u304c\u3067\u304d\u306a\u3044\nSQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u89e3\u6c7a\u65b9\u6cd5: doctrine\/dbal\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u5c0e\u5165\u3068\u9069\u5207\u306a\u5909\u66f4\u65b9\u6cd5\u306e\u4f7f\u7528\npublic function up()\n{\n    Schema::table('users', function (Blueprint $table) {\n        \/\/ \u30ab\u30e9\u30e0\u540d\u5909\u66f4\n        $table-&gt;renameColumn('email', 'email_address');\n\n        \/\/ \u30ab\u30e9\u30e0\u578b\u5909\u66f4\n        $table-&gt;string('name', 100)-&gt;change();\n\n        \/\/ NULL\u5236\u7d04\u306e\u5909\u66f4\n        $table-&gt;string('phone')-&gt;nullable(false)-&gt;change();\n    });\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-35\">\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u6642\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-36\">1. \u30c7\u30fc\u30bf\u640d\u5931\u306e\u9632\u6b62<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class AddStatusToOrders extends Migration\n{\n    public function up()\n    {\n        Schema::table('orders', function (Blueprint $table) {\n            \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u30c7\u30fc\u30bf\u640d\u5931\u3092\u9632\u3050\n            $table-&gt;string('status')-&gt;default('pending');\n        });\n    }\n\n    public function down()\n    {\n        \/\/ \u91cd\u8981\u306a\u30c7\u30fc\u30bf\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u8003\u616e\n        Schema::table('orders', function (Blueprint $table) {\n            $table-&gt;dropColumn('status');\n        });\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">2. \u5b89\u5168\u306a\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u51e6\u7406<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5916\u90e8\u30ad\u30fc\u3092\u6301\u3064\u30c6\u30fc\u30d6\u30eb\u306e\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\npublic function down()\n{\n    \/\/ \u5916\u90e8\u30ad\u30fc\u3092\u6700\u521d\u306b\u524a\u9664\n    Schema::table('posts', function (Blueprint $table) {\n        $table-&gt;dropForeign(['user_id']);\n    });\n\n    \/\/ \u305d\u306e\u5f8c\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u524a\u9664\n    Schema::dropIfExists('posts');\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">3. \u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u6ce8\u610f\u70b9<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5927\u91cf\u30c7\u30fc\u30bf\u306e\u66f4\u65b0\u6642\u306e\u6ce8\u610f\u70b9\npublic function up()\n{\n    \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u3067\u306e\u66f4\u65b0\n    DB::table('users')-&gt;orderBy('id')-&gt;chunk(1000, function ($users) {\n        foreach ($users as $user) {\n            DB::table('users')\n                -&gt;where('id', $user-&gt;id)\n                -&gt;update(['status' =&gt; 'active']);\n        }\n    });\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-39\">\u30c8\u30e9\u30d6\u30eb\u9632\u6b62\u306e\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e8b\u524d\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   public function up()\n   {\n       \/\/ \u4e8b\u524d\u6761\u4ef6\u306e\u78ba\u8a8d\n       if (Schema::hasColumn('users', 'email')) {\n           throw new \\Exception('Column already exists');\n       }\n\n       \/\/ \u5b89\u5168\u306a\u5b9f\u88c5\n       Schema::table('users', function (Blueprint $table) {\n           $table-&gt;string('email')-&gt;unique();\n       });\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   public function up()\n   {\n       DB::transaction(function () {\n           \/\/ \u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u64cd\u4f5c\u3092\u5b89\u5168\u306b\u5b9f\u884c\n           Schema::create('orders', function (Blueprint $table) {\n               $table-&gt;id();\n               $table-&gt;timestamps();\n           });\n\n           Schema::create('order_items', function (Blueprint $table) {\n               $table-&gt;id();\n               $table-&gt;foreignId('order_id')-&gt;constrained();\n               $table-&gt;timestamps();\n           });\n       });\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   public function up()\n   {\n       try {\n           Schema::table('users', function (Blueprint $table) {\n               $table-&gt;string('avatar')-&gt;nullable();\n           });\n       } catch (\\Exception $e) {\n           \/\/ \u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u8a18\u9332\n           \\Log::error('Migration failed: ' . $e-&gt;getMessage());\n           throw $e;\n       }\n   }<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5bfe\u7b56\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u4fe1\u983c\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c8\u30e9\u30d6\u30eb\u767a\u751f\u6642\u306e\u8fc5\u901f\u306a\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u7dad\u6301<\/li>\n\n\n\n<li>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u3001\u5b9f\u969b\u306e\u904b\u7528\u306b\u304a\u3051\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-40\">\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u904b\u7528\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<p>\u672c\u756a\u74b0\u5883\u3067\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9f\u884c\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u5b89\u5b9a\u6027\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u91cd\u8981\u306a\u4f5c\u696d\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u5b89\u5168\u304b\u3064\u52b9\u7387\u7684\u306a\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u904b\u7528\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-41\">\u672c\u756a\u74b0\u5883\u3067\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9f\u884c\u6642\u306e\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-42\">1. \u30c7\u30d7\u30ed\u30a4\u524d\u306e\u6e96\u5099\u3068\u78ba\u8a8d<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u672c\u756a\u5b9f\u884c\u524d\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u7528\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\nclass AddStatusToOrders extends Migration\n{\n    public function up()\n    {\n        \/\/ 1. \u5b9f\u884c\u6642\u9593\u306e\u898b\u7a4d\u3082\u308a\n        $tableSize = DB::table('orders')-&gt;count();\n        if ($tableSize &gt; 1000000) {\n            \\Log::warning('Large table migration detected');\n        }\n\n        \/\/ 2. \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u4e8b\u524d\u78ba\u8a8d\n        if (!Schema::hasTable('orders')) {\n            throw new \\Exception('Target table does not exist');\n        }\n\n        Schema::table('orders', function (Blueprint $table) {\n            \/\/ 3. \u65e2\u5b58\u30c7\u30fc\u30bf\u3078\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\n            $table-&gt;string('status')-&gt;nullable()-&gt;default(null);\n        });\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-43\">\u30c7\u30d7\u30ed\u30a4\u624b\u9806\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e8b\u524d\u78ba\u8a8d<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   # \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u72b6\u614b\u78ba\u8a8d\n   php artisan migrate:status\n\n   # \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u8a08\u753b\u78ba\u8a8d\n   php artisan migrate --pretend<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u5b9f\u65bd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   # \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\n   mysqldump -u user -p database_name &gt; backup.sql\n\n   # \u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\n   cp .env .env.backup<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6bb5\u968e\u7684\u306a\u30c7\u30d7\u30ed\u30a4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   # 1. \u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306e\u6709\u52b9\u5316\n   php artisan down --refresh=60\n\n   # 2. \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u5b9f\u884c\n   php artisan migrate --force\n\n   # 3. \u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e2\u30fc\u30c9\u306e\u89e3\u9664\n   php artisan up<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-44\">2. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class UpdateUserStatusBatch extends Migration\n{\n    public function up()\n    {\n        \/\/ \u5927\u898f\u6a21\u30c7\u30fc\u30bf\u66f4\u65b0\u6642\u306e\u30d0\u30c3\u30c1\u51e6\u7406\n        Schema::table('users', function (Blueprint $table) {\n            \/\/ \u4e00\u6642\u7684\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u8ffd\u52a0\n            $table-&gt;index('created_at', 'tmp_created_at_index');\n        });\n\n        \/\/ \u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\u3092\u9069\u5207\u306b\u8a2d\u5b9a\n        DB::table('users')\n            -&gt;orderBy('id')\n            -&gt;chunk(1000, function ($users) {\n                foreach ($users as $user) {\n                    DB::table('users')\n                        -&gt;where('id', $user-&gt;id)\n                        -&gt;update(['status' =&gt; 'active']);\n                }\n            });\n\n        \/\/ \u4e00\u6642\u7684\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u524a\u9664\n        Schema::table('users', function (Blueprint $table) {\n            $table-&gt;dropIndex('tmp_created_at_index');\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-45\">\u65e2\u5b58\u30c7\u30fc\u30bf\u306e\u5b89\u5168\u306a\u79fb\u884c\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-46\">1. \u30c7\u30fc\u30bf\u79fb\u884c\u306e\u57fa\u672c\u30d1\u30bf\u30fc\u30f3<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class MigrateUserAddresses extends Migration\n{\n    public function up()\n    {\n        \/\/ 1. \u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\n        Schema::create('user_addresses', function (Blueprint $table) {\n            $table-&gt;id();\n            $table-&gt;foreignId('user_id')-&gt;constrained();\n            $table-&gt;string('address_line1');\n            $table-&gt;string('address_line2')-&gt;nullable();\n            $table-&gt;string('city');\n            $table-&gt;string('postal_code');\n            $table-&gt;timestamps();\n        });\n\n        \/\/ 2. \u30c7\u30fc\u30bf\u306e\u79fb\u884c\n        $users = DB::table('users')\n            -&gt;whereNotNull('address')\n            -&gt;cursor();\n\n        foreach ($users as $user) {\n            DB::table('user_addresses')-&gt;insert([\n                'user_id' =&gt; $user-&gt;id,\n                'address_line1' =&gt; $user-&gt;address,\n                'city' =&gt; $user-&gt;city ?? '',\n                'postal_code' =&gt; $user-&gt;postal_code ?? '',\n                'created_at' =&gt; now(),\n                'updated_at' =&gt; now(),\n            ]);\n        }\n\n        \/\/ 3. \u53e4\u3044\u30ab\u30e9\u30e0\u306e\u524a\u9664\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09\n        Schema::table('users', function (Blueprint $table) {\n            $table-&gt;dropColumn(['address', 'city', 'postal_code']);\n        });\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-47\">2. \u6bb5\u968e\u7684\u306a\u30b9\u30ad\u30fc\u30de\u5909\u66f4<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Step 1: \u65b0\u30ab\u30e9\u30e0\u306e\u8ffd\u52a0\nclass AddNewStatusColumnToOrders extends Migration\n{\n    public function up()\n    {\n        Schema::table('orders', function (Blueprint $table) {\n            $table-&gt;string('new_status')-&gt;nullable();\n        });\n    }\n}\n\n\/\/ Step 2: \u30c7\u30fc\u30bf\u306e\u79fb\u884c\nclass MigrateOrderStatuses extends Migration\n{\n    public function up()\n    {\n        DB::table('orders')-&gt;chunk(1000, function ($orders) {\n            foreach ($orders as $order) {\n                $newStatus = $this-&gt;mapStatus($order-&gt;status);\n                DB::table('orders')\n                    -&gt;where('id', $order-&gt;id)\n                    -&gt;update(['new_status' =&gt; $newStatus]);\n            }\n        });\n    }\n\n    private function mapStatus($oldStatus)\n    {\n        $statusMap = [\n            'pending' =&gt; 'awaiting_payment',\n            'paid' =&gt; 'payment_received',\n            'shipped' =&gt; 'in_transit'\n        ];\n        return $statusMap[$oldStatus] ?? 'unknown';\n    }\n}\n\n\/\/ Step 3: \u53e4\u3044\u30ab\u30e9\u30e0\u306e\u524a\u9664\nclass RemoveOldStatusFromOrders extends Migration\n{\n    public function up()\n    {\n        Schema::table('orders', function (Blueprint $table) {\n            $table-&gt;dropColumn('status');\n        });\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-48\">\u904b\u7528\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u7dcf\u307e\u3068\u3081<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u306e\u539f\u5247<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e38\u306b\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u53d6\u5f97<\/li>\n\n\n\n<li>\u5c0f\u898f\u6a21\u306a\u5909\u66f4\u306b\u5206\u5272<\/li>\n\n\n\n<li>\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u6700\u5c0f\u5316<\/li>\n\n\n\n<li>\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u624b\u9806\u306e\u6e96\u5099<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   class OptimizedMigration extends Migration\n   {\n       public function up()\n       {\n           \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u306f\u5225\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3067\n           Schema::table('large_table', function (Blueprint $table) {\n               $table-&gt;index('frequently_searched_column');\n           });\n\n           \/\/ \u5927\u91cf\u30c7\u30fc\u30bf\u66f4\u65b0\u306f\u30d0\u30c3\u30c1\u3067\n           DB::table('large_table')\n               -&gt;orderBy('id')\n               -&gt;chunk(1000, function ($items) {\n                   \/\/ \u51e6\u7406\n               });\n       }\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u76e3\u8996\u3068\u30ed\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   class MonitoredMigration extends Migration\n   {\n       public function up()\n       {\n           $startTime = microtime(true);\n\n           DB::transaction(function () {\n               \/\/ \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u51e6\u7406\n               Schema::table('users', function (Blueprint $table) {\n                   $table-&gt;string('new_column');\n               });\n           });\n\n           $duration = microtime(true) - $startTime;\n           \\Log::info(\"Migration completed in {$duration} seconds\");\n       }\n   }<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u30ea\u30ab\u30d0\u30ea\u30fc<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   class SafeMigration extends Migration\n   {\n       public function up()\n       {\n           try {\n               DB::beginTransaction();\n\n               \/\/ \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u51e6\u7406\n\n               DB::commit();\n           } catch (\\Exception $e) {\n               DB::rollBack();\n               \\Log::error('Migration failed: ' . $e-&gt;getMessage());\n               throw $e;\n           }\n       }\n   }<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6642\u9593\u306e\u77ed\u7e2e<\/li>\n\n\n\n<li>\u30c8\u30e9\u30d6\u30eb\u767a\u751f\u6642\u306e\u8fc5\u901f\u306a\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u5168\u4f53\u306e\u4f5c\u696d\u52b9\u7387\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<p>\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u904b\u7528\u306f\u7d99\u7d9a\u7684\u306a\u6539\u5584\u304c\u5fc5\u8981\u306a\u5206\u91ce\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u57fa\u790e\u3068\u3057\u306a\u304c\u3089\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u7279\u6027\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":{"0":"post-2657","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-php","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2657"}],"version-history":[{"count":2,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2657\/revisions"}],"predecessor-version":[{"id":2659,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2657\/revisions\/2659"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}