{"id":1584,"date":"2026-03-25T07:20:39","date_gmt":"2026-03-25T07:20:39","guid":{"rendered":"https:\/\/www.ez-knowledge.com\/ja\/modeling-multi-tenant-schemas-modern-er-diagrams\/"},"modified":"2026-03-25T07:20:39","modified_gmt":"2026-03-25T07:20:39","slug":"modeling-multi-tenant-schemas-modern-er-diagrams","status":"publish","type":"post","link":"https:\/\/www.ez-knowledge.com\/ja\/modeling-multi-tenant-schemas-modern-er-diagrams\/","title":{"rendered":"\u73fe\u4ee3\u306eER\u56f3\u306b\u304a\u3051\u308b\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u30b9\u30ad\u30fc\u30de\u306e\u30e2\u30c7\u30ea\u30f3\u30b0"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Infographic illustrating three multi-tenant database schema patterns for ER diagrams: dedicated database per tenant, shared database with separate schemas, and shared database with shared schema using tenant_id column, comparing isolation levels, costs, and maintenance complexity with stamp and washi tape design style\" decoding=\"async\" src=\"https:\/\/www.ez-knowledge.com\/wp-content\/uploads\/2026\/03\/multi-tenant-schema-erd-patterns-infographic.jpg\"\/><\/figure>\n<\/div>\n<p>\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u6587\u8108\u306b\u304a\u3044\u3066\u3001\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u306e\u6982\u5ff5\u306f\u57fa\u76e4\u3068\u306a\u308b\u3002\u5358\u4e00\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u8907\u6570\u306e\u9867\u5ba2\uff08\u30c6\u30ca\u30f3\u30c8\u3068\u547c\u3070\u308c\u308b\uff09\u3092\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u3057\u3064\u3064\u3001\u30c7\u30fc\u30bf\u306e\u8ad6\u7406\u7684\u306a\u5206\u96e2\u3092\u7dad\u6301\u3059\u308b\u3002\u4e0b\u5c64\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u6b63\u78ba\u3055\u304c\u6c42\u3081\u3089\u308c\u308b\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u306f\u3001\u3053\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u8a2d\u8a08\u56f3\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3002\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u95a2\u4fc2\u3001\u30ad\u30fc\u3001\u5236\u7d04\u3092\u53ef\u8996\u5316\u3057\u3001\u30c6\u30ca\u30f3\u30c8\u5168\u4f53\u306b\u308f\u305f\u308b\u30c7\u30fc\u30bf\u6574\u5408\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3002 \ud83d\udcd0<\/p>\n<p>\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u74b0\u5883\u5411\u3051\u306eERD\u3092\u69cb\u7bc9\u3059\u308b\u969b\u306e\u4e3b\u306a\u8ab2\u984c\u306f\u3001\u5206\u96e2\u6027\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3053\u3068\u3067\u3042\u308b\u3002\u3059\u3079\u3066\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u9069\u3059\u308b\u5358\u4e00\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u5b58\u5728\u3057\u306a\u3044\u3002\u4ee3\u308f\u308a\u306b\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u3068\u904b\u7528\u4e88\u7b97\u306b\u5408\u81f4\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u3092\u9078\u629e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30b9\u30ad\u30fc\u30de\u3092\u30e2\u30c7\u30ea\u30f3\u30b0\u3059\u308b\u305f\u3081\u306e\u4e3b\u8981\u306a\u6226\u7565\u3092\u691c\u8a0e\u3057\u3001\u7279\u5b9a\u306e\u30d9\u30f3\u30c0\u30fc\u88fd\u30c4\u30fc\u30eb\u306b\u4f9d\u5b58\u305b\u305a\u306b\u3001\u6280\u8853\u7684\u5b9f\u88c5\u306e\u8a73\u7d30\u306b\u6df1\u304f\u6398\u308a\u4e0b\u3052\u308b\u3002 \ud83d\udee0\ufe0f<\/p>\n<h2>\u30b3\u30a2\u30d1\u30bf\u30fc\u30f3\u306e\u7406\u89e3 \ud83d\udd0d<\/h2>\n<p>\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u57fa\u76e4\u306f\u3001\u30c6\u30ca\u30f3\u30c8\u30c7\u30fc\u30bf\u304c\u7269\u7406\u7684\u306b\u3069\u306e\u3088\u3046\u306b\u683c\u7d0d\u3055\u308c\u3001\u8ad6\u7406\u7684\u306b\u3069\u306e\u3088\u3046\u306b\u5206\u96e2\u3055\u308c\u308b\u304b\u306b\u3042\u308b\u3002\u696d\u754c\u3092\u652f\u914d\u3059\u308b3\u3064\u306e\u7570\u306a\u308b\u30d1\u30bf\u30fc\u30f3\u304c\u5b58\u5728\u3059\u308b\u3002\u305d\u308c\u305e\u308c\u304c\u30c7\u30fc\u30bf\u5206\u96e2\u6027\u3068\u4fdd\u5b88\u306e\u8907\u96d1\u3055\u306b\u95a2\u3059\u308b\u72ec\u81ea\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3092\u63d0\u793a\u3057\u3066\u3044\u308b\u3002<\/p>\n<h3>1. \u30c6\u30ca\u30f3\u30c8\u3054\u3068\u306e\u5c02\u7528\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \ud83c\udfe2<\/h3>\n<p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u9867\u5ba2\u306b\u72ec\u81ea\u306e\u5206\u96e2\u3055\u308c\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u3002ERD\u306e\u69cb\u9020\u306f\u3059\u3079\u3066\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u540c\u4e00\u3060\u304c\u3001\u7269\u7406\u7684\u306a\u5883\u754c\u306f\u53b3\u683c\u3067\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u5206\u96e2\u30ec\u30d9\u30eb\uff1a<\/strong>\u6700\u5927\u30021\u3064\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u767a\u751f\u3057\u305f\u969c\u5bb3\u306f\u3001\u4ed6\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5f71\u97ff\u3057\u306a\u3044\u3002<\/li>\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a<\/strong>\u9ad8\u3002\u7269\u7406\u7684\u306a\u5206\u96e2\u306b\u3088\u308a\u3001\u8aa4\u3063\u305f\u30c7\u30fc\u30bf\u6f0f\u6d29\u3092\u9632\u3050\u3002<\/li>\n<li><strong>\u30b3\u30b9\u30c8\uff1a<\/strong>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3054\u3068\u306e\u30ea\u30bd\u30fc\u30b9\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u305f\u3081\u3001\u9ad8\u304f\u306a\u308b\u3002<\/li>\n<li><strong>\u79fb\u884c\uff1a<\/strong>\u8907\u96d1\u3002\u30b9\u30ad\u30fc\u30de\u306e\u5909\u66f4\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/li>\n<\/ul>\n<p>ERD\u306e\u89b3\u70b9\u304b\u3089\u898b\u308b\u3068\u3001\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u6a19\u6e96\u7684\u306a\u30b7\u30f3\u30b0\u30eb\u30c6\u30ca\u30f3\u30c8\u56f3\u306b\u898b\u3048\u308b\u3002\u3057\u304b\u3057\u3001\u30c7\u30d7\u30ed\u30a4\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306f\u8907\u6570\u306e\u63a5\u7d9a\u3092\u7ba1\u7406\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u3053\u308c\u306f\u3001\u53b3\u683c\u306a\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u8981\u4ef6\u3092\u6301\u3064\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u3002<\/p>\n<h3>2. \u5171\u6709\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u5225\u3005\u306e\u30b9\u30ad\u30fc\u30de \ud83d\udcc2<\/h3>\n<p>\u3053\u3053\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u30c6\u30ca\u30f3\u30c8\u304c\u5358\u4e00\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u5185\u306b\u5b58\u5728\u3059\u308b\u304c\u3001\u5404\u30c6\u30ca\u30f3\u30c8\u306f\u72ec\u81ea\u306e\u7570\u306a\u308b\u30b9\u30ad\u30fc\u30de\uff08\u540d\u524d\u7a7a\u9593\uff09\u3092\u6301\u3064\u3002\u30c6\u30fc\u30d6\u30eb\u306f\u30b9\u30ad\u30fc\u30de\u3054\u3068\u306b\u8907\u88fd\u3055\u308c\u308b\u3002<\/p>\n<ul>\n<li><strong>\u5206\u96e2\u30ec\u30d9\u30eb\uff1a<\/strong>\u9ad8\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u5185\u306e\u8ad6\u7406\u7684\u306a\u5206\u96e2\u3002<\/li>\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a<\/strong>\u5f37\u3002\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u30ea\u30b9\u30c8\uff08ACL\uff09\u306b\u3088\u308a\u3001\u30b9\u30ad\u30fc\u30de\u306e\u53ef\u8996\u6027\u3092\u5236\u9650\u3067\u304d\u308b\u3002<\/li>\n<li><strong>\u30b3\u30b9\u30c8\uff1a<\/strong>\u4e2d\u7a0b\u5ea6\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u5171\u6709\u3059\u308b\u3002<\/li>\n<li><strong>\u4fdd\u5b88\uff1a<\/strong>\u5c02\u7528DB\u3088\u308a\u3082\u5bb9\u6613\u3060\u304c\u3001\u30b9\u30ad\u30fc\u30de\u306e\u66f4\u65b0\u306f\u3059\u3079\u3066\u306e\u30b9\u30ad\u30fc\u30de\u306b\u4f1d\u642c\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n<p>ERD\u3067\u306f\u3001\u7279\u5b9a\u306e\u540d\u524d\u7a7a\u9593\u30e9\u30d9\u30eb\u306e\u4e0b\u306b\u30c6\u30fc\u30d6\u30eb\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u3053\u3068\u3067\u8868\u73fe\u3055\u308c\u308b\u3002\u95a2\u4fc2\u306f\u4e00\u8cab\u3057\u3066\u3044\u308b\u304c\u3001\u56f3\u306e\u7bc4\u56f2\u306f\u8907\u6570\u306e\u30b9\u30ad\u30fc\u30de\u30b3\u30f3\u30c6\u30ca\u3092\u793a\u3059\u3088\u3046\u306b\u62e1\u5927\u3059\u308b\u3002<\/p>\n<h3>3. \u5171\u6709\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u5171\u6709\u30b9\u30ad\u30fc\u30de \ud83d\udd17<\/h3>\n<p>\u3053\u308c\u306f\u4e00\u822c\u7684\u306aSaaS\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u6700\u3082\u4e00\u822c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u3042\u308b\u3002\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u306f\u3001\u7279\u5b9a\u306e\u5217\u306b\u3088\u3063\u3066\u533a\u5225\u3055\u308c\u308b\u540c\u3058\u30c6\u30fc\u30d6\u30eb\u30bb\u30c3\u30c8\u306b\u683c\u7d0d\u3055\u308c\u308b\u3002<\/p>\n<ul>\n<li><strong>\u5206\u96e2\u30ec\u30d9\u30eb\uff1a<\/strong>\u8ad6\u7406\u7684\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u884c\u306f\u540c\u3058\u30c6\u30fc\u30d6\u30eb\u306b\u5b58\u5728\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a<\/strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u304a\u3088\u3073\u884c\u30ec\u30d9\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff08RLS\uff09\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30b3\u30b9\u30c8\uff1a<\/strong>\u6700\u4f4e\u3002\u30ea\u30bd\u30fc\u30b9\u306e\u5229\u7528\u52b9\u7387\u3092\u6700\u5927\u5316\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u4fdd\u5b88\uff1a<\/strong>\u7c21\u5358\u3067\u3059\u3002\u30b9\u30ad\u30fc\u30de\u306e\u5909\u66f4\u306f\u3059\u3079\u3066\u306e\u30c6\u30ca\u30f3\u30c8\u306b\u5373\u5ea7\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306eERD\u3067\u306f\u3001\u91cd\u8981\u306a\u30ab\u30e9\u30e0\u304c\u5c0e\u5165\u3055\u308c\u307e\u3059\uff1a<code>tenant_id<\/code>\u3002\u3053\u306e\u5916\u90e8\u30ad\u30fc\u306f\u3001\u3059\u3079\u3066\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u7279\u5b9a\u306e\u9867\u5ba2\u306b\u30ea\u30f3\u30af\u3057\u307e\u3059\u3002\u3053\u306e\u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u5206\u96e2\u306e\u57fa\u76e4\u3067\u3059\u3002<\/p>\n<h2>ERD\u306b\u304a\u3051\u308b\u30c6\u30ca\u30f3\u30c8\u30c7\u30fc\u30bf\u306e\u53ef\u8996\u5316 \ud83d\udcca<\/h2>\n<p>\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u7528\u306e\u52b9\u679c\u7684\u306aERD\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u6226\u7565\u3092\u660e\u78ba\u306b\u4f1d\u3048\u308b\u305f\u3081\u306b\u7279\u5b9a\u306e\u8868\u8a18\u304c\u5fc5\u8981\u3067\u3059\u3002\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6d41\u308c\u3084\u5883\u754c\u306e\u4f4d\u7f6e\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30c6\u30ca\u30f3\u30c8ID\u30ab\u30e9\u30e0<\/h3>\n<p>\u5171\u6709\u30b9\u30ad\u30fc\u30de\u3067\u306f\u3001<code>tenant_id<\/code>\u30e6\u30fc\u30b6\u30fc\u56fa\u6709\u306e\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3059\u308b\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u5b58\u5728\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u4efb\u610f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u3053\u306e\u30ab\u30e9\u30e0\u3092\u7701\u7565\u3059\u308b\u3068\u3001\u6df1\u523b\u306a\u30c7\u30fc\u30bf\u6f0f\u6d29\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4e3b\u30ad\u30fc\uff1a<\/strong>\u901a\u5e38\u3001<code>tenant_id<\/code>tenant_id\u3068\u30ed\u30fc\u30ab\u30ebID\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u3001\u8907\u5408\u4e3b\u30ad\u30fc\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff1a<\/strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002tenant_id\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u30af\u30a8\u30ea\u306f\u3001\u9ad8\u901f\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<code>tenant_id<\/code>\u9ad8\u901f\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u5236\u7d04\uff1a<\/strong>\u5916\u90e8\u30ad\u30fc\u306f\u3001\u901a\u5e38\u3001\u4e2d\u592e\u306e<code>tenants<\/code>\u30de\u30b9\u30bf\u30fc\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30de\u30b9\u30bf\u30fc\u30c6\u30ca\u30f3\u30c8\u30c6\u30fc\u30d6\u30eb<\/h3>\n<p>\u5404\u30c6\u30ca\u30f3\u30c8\u306b\u95a2\u3059\u308b\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3059\u308b\u5c02\u7528\u30c6\u30fc\u30d6\u30eb\u304c\u901a\u5e38\u5b58\u5728\u3057\u307e\u3059\u3002\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3001\u8a2d\u5b9a\u8a73\u7d30\u3001\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u8acb\u6c42\u60c5\u5831\u304c\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4e3b\u306a\u5c5e\u6027\uff1a<\/strong>\u30c6\u30ca\u30f3\u30c8ID\u3001\u540d\u524d\u3001\u30d7\u30e9\u30f3Tier\u3001\u4f5c\u6210\u65e5\u3002<\/li>\n<li><strong>\u95a2\u4fc2\uff1a<\/strong>\u4ed6\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u3068\u306e1\u5bfe\u591a\u3002<\/li>\n<\/ul>\n<h2>\u30b9\u30ad\u30fc\u30de\u6226\u7565\u306e\u6bd4\u8f03 \ud83d\udccb<\/h2>\n<p>\u9069\u5207\u306a\u5224\u65ad\u3092\u4e0b\u3059\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u8868\u3092\u4f7f\u7528\u3057\u3066\u5404\u6226\u7565\u306e\u904b\u7528\u3078\u306e\u5f71\u97ff\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6a5f\u80fd<\/th>\n<th>\u5c02\u7528DB<\/th>\n<th>\u5171\u6709\u30b9\u30ad\u30fc\u30de<\/th>\n<th>\u5171\u6709\u30c6\u30fc\u30d6\u30eb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30c7\u30fc\u30bf\u9694\u96e2<\/td>\n<td>\u7269\u7406\u7684<\/td>\n<td>\u8ad6\u7406\u7684<\/td>\n<td>\u8ad6\u7406\u7684<\/td>\n<\/tr>\n<tr>\n<td>\u30af\u30a8\u30ea\u306e\u8907\u96d1\u3055<\/td>\n<td>\u7c21\u5358<\/td>\n<td>\u8907\u96d1<\/td>\n<td>\u8907\u96d1<\/td>\n<\/tr>\n<tr>\n<td>\u30ea\u30bd\u30fc\u30b9\u30b3\u30b9\u30c8<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d<\/td>\n<td>\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30ad\u30fc\u30de\u79fb\u884c<\/td>\n<td>\u56f0\u96e3<\/td>\n<td>\u4e2d<\/td>\n<td>\u7c21\u5358<\/td>\n<\/tr>\n<tr>\n<td>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u6226\u7565<\/td>\n<td>\u7d30\u7c92\u5ea6<\/td>\n<td>\u7d30\u7c92\u5ea6<\/td>\n<td>\u30d5\u30eb\u30c0\u30f3\u30d7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30c7\u30fc\u30bf\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0 \ud83d\udd12<\/h2>\n<p>\u30b9\u30ad\u30fc\u30de\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u306f\u6226\u3044\u306e\u534a\u5206\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u5c64\u306f\u3001\u56f3\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u5883\u754c\u3092\u5f37\u5236\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u5171\u6709\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u76ee\u6a19\u306f\u8ad6\u7406\u7684\u306a\u5206\u96e2\u3067\u3059\u3002<\/p>\n<h3>\u884c\u30ec\u30d9\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff08RLS\uff09<\/h3>\n<p>\u73fe\u4ee3\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u306fRLS\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001\u884c\u30ec\u30d9\u30eb\u3067\u30a2\u30af\u30bb\u30b9\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u5236\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u81ea\u4f53\u304c\u73fe\u5728\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u57fa\u3065\u3044\u3066\u7d50\u679c\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30dd\u30ea\u30b7\u30fc\u5b9a\u7fa9\uff1a<\/strong> \u30eb\u30fc\u30eb\u306f\u3001\u884c\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u306f\u3001<code>tenant_id<\/code>\u304c\u30bb\u30c3\u30b7\u30e7\u30f3\u3068\u4e00\u81f4\u3059\u308b\u5834\u5408\u306e\u307f\u3067\u3042\u308b\u3068\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u5b9f\u88c5\uff1a<\/strong> ERD\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u4fdd\u5b58\u3067\u304d\u308b\u80fd\u529b\u3092\u53cd\u6620\u3059\u3079\u304d\u3067\u3059\u3002<\/li>\n<li><strong>\u5229\u70b9\uff1a<\/strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u30d0\u30b0\u306b\u3088\u308b\u30c7\u30fc\u30bf\u6f0f\u6d29\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u76e3\u67fb\u3068\u30ed\u30b0\u8a18\u9332<\/h3>\n<p>\u30c6\u30ca\u30f3\u30c8\u56fa\u6709\u306e\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u3059\u3079\u3066\u306e\u5909\u66f4\u306f\u30ed\u30b0\u306b\u8a18\u9332\u3055\u308c\u308b\u3079\u304d\u3067\u3059\u3002\u8ab0\u304c\u4f55\u3092\u3044\u3064\u5909\u66f4\u3057\u305f\u304b\u3092\u8ffd\u8de1\u3059\u308b\u305f\u3081\u306b\u3001ERD\u306b\u76e3\u67fb\u30c6\u30fc\u30d6\u30eb\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u306f\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u304a\u3088\u3073\u30c7\u30d0\u30c3\u30b0\u306b\u304a\u3044\u3066\u91cd\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5fc5\u9808\u30d5\u30a3\u30fc\u30eb\u30c9\uff1a<\/strong>\u30c6\u30ca\u30f3\u30c8ID\u3001\u30e6\u30fc\u30b6\u30fcID\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3001\u65e7\u5024\u3001\u65b0\u5024\u3002<\/li>\n<li><strong>\u4fdd\u6301\u671f\u9593\uff1a<\/strong>\u30dd\u30ea\u30b7\u30fc\u306f\u30ed\u30b0\u3092\u3069\u306e\u304f\u3089\u3044\u4fdd\u6301\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<h2>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4e0a\u306e\u8003\u616e\u4e8b\u9805 \u26a1<\/h2>\n<p>\u5171\u6709\u30c6\u30fc\u30d6\u30eb\u306f\u30af\u30a8\u30ea\u5b9f\u884c\u8a08\u753b\u306b\u8907\u96d1\u6027\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u91cf\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u306f\u5168\u30c6\u30fc\u30d6\u30eb\u3092\u30b9\u30ad\u30e3\u30f3\u305b\u305a\u306b\u30c6\u30ca\u30f3\u30c8\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u5206\u96e2\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6226\u7565<\/h3>\n<p>\u6a19\u6e96\u7684\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002\u30c6\u30ca\u30f3\u30c8\u8b58\u5225\u5b50\u3092\u512a\u5148\u3059\u308b\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30d7\u30e9\u30a4\u30de\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff1a<\/strong> \u306f<code>tenant_id<\/code>\u304b\u3089\u59cb\u307e\u308a\u3001\u305d\u306e\u5f8c\u306b\u81ea\u7136\u30ad\u30fc\u304c\u7d9a\u304f\u3079\u304d\u3067\u3059\u3002<\/li>\n<li><strong>\u30af\u30a8\u30ea\u6700\u9069\u5316\uff1a<\/strong> \u3059\u3079\u3066\u306e\u30af\u30a8\u30ea\u304c<code>WHERE<\/code>\u53e5\u306b\u30c6\u30ca\u30f3\u30c8\u30d5\u30a3\u30eb\u30bf\u3092\u542b\u3080\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\uff1a<\/strong> \u4e00\u90e8\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u3092\u7269\u7406\u7684\u306b\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u5316\u3067\u304d\u3001<code>tenant_id<\/code>\u7bc4\u56f2\u307e\u305f\u306f\u30cf\u30c3\u30b7\u30e5\u306b\u3088\u3063\u3066\u3002<\/li>\n<\/ul>\n<h3>\u30af\u30a8\u30ea\u306e\u8907\u96d1\u3055<\/h3>\n<p>\u8907\u6570\u306e\u30b9\u30ad\u30fc\u30de\u3084\u30c6\u30ca\u30f3\u30c8\u9593\u3067\u30c6\u30fc\u30d6\u30eb\u3092\u7d50\u5408\u3059\u308b\u969b\u3001\u7d50\u5408\u6761\u4ef6\u306b\u306f\u30c6\u30ca\u30f3\u30c8ID\u3092\u542b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u6020\u308b\u3068\u3001\u7570\u306a\u308b\u9867\u5ba2\u306e\u30c7\u30fc\u30bf\u306e\u30ab\u30eb\u30c6\u30b7\u30a2\u30f3\u7a4d\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7d50\u5408\u30ed\u30b8\u30c3\u30af\uff1a<\/strong> \u5e38\u306b<code>tenant_id<\/code> \u304a\u3088\u3073\u95a2\u4fc2\u30ad\u30fc\u3067\u7d50\u5408\u3059\u308b\u3002<\/li>\n<li><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30a4\u30e4\u30fc\uff1a<\/strong>\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u306f\u3001\u30c6\u30ca\u30f3\u30c8\u30d5\u30a3\u30eb\u30bf\u3092\u81ea\u52d5\u7684\u306b\u633f\u5165\u3059\u3079\u304d\u3067\u3042\u308b\u3002<\/li>\n<\/ul>\n<h2>\u4fdd\u5b88\u3068\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3 \ud83d\udd04<\/h2>\n<p>\u30b9\u30ad\u30fc\u30de\u306f\u9759\u7684\u3067\u306f\u306a\u3044\u3002\u8981\u4ef6\u306e\u5909\u5316\u306b\u4f34\u3063\u3066\u9032\u5316\u3059\u308b\u3002\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u5316\u306f\u3053\u308c\u3089\u306e\u5909\u66f4\u306b\u3055\u3089\u306b\u96e3\u6613\u5ea6\u3092\u52a0\u3048\u308b\u3002<\/p>\n<h3>\u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316<\/h3>\n<p>\u5171\u6709\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u30ab\u30e9\u30e0\u306e\u8ffd\u52a0\u306f\u7c21\u5358\u3067\u3042\u308b\u3002\u4e00\u65b9\u3001\u30ab\u30e9\u30e0\u306e\u524a\u9664\u306f\u3059\u3079\u3066\u306e\u30c6\u30ca\u30f3\u30c8\u306b\u5f71\u97ff\u3059\u308b\u3002\u5c02\u7528\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30eb\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u5bfe\u3057\u3066\u5909\u66f4\u3092\u30b9\u30af\u30ea\u30d7\u30c8\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\uff1a<\/strong>\u5f8c\u65b9\u4e92\u63db\u6027\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u3001\u30b9\u30ad\u30fc\u30de\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u8ffd\u8de1\u3059\u308b\u3002<\/li>\n<li><strong>\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\uff1a<\/strong>\u30c6\u30ca\u30f3\u30c8\u306e\u4e00\u90e8\u3067\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u306b\u5909\u66f4\u3092\u5143\u306b\u623b\u3059\u305f\u3081\u306e\u8a08\u753b\u3092\u6301\u3064\u3002<\/li>\n<\/ul>\n<h3>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u5fa9\u65e7<\/h3>\n<p>\u5fa9\u65e7\u6226\u7565\u306f\u30d1\u30bf\u30fc\u30f3\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3002\u5c02\u7528\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u3001\u4ed6\u306e\u30c6\u30ca\u30f3\u30c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u306b\u5358\u4e00\u306e\u30c6\u30ca\u30f3\u30c8\u3092\u5fa9\u65e7\u3067\u304d\u308b\u3002\u5171\u6709\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u3001\u5168\u4f53\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u5fa9\u65e7\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u7c92\u5ea6\uff1a<\/strong>\u5171\u6709\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u3001\u5358\u4e00\u306e\u30c6\u30ca\u30f3\u30c8\u306b\u5bfe\u3059\u308b\u6642\u70b9\u5fa9\u65e7\u304c\u56f0\u96e3\u306b\u306a\u308b\u3002<\/li>\n<li><strong>\u30c6\u30b9\u30c8\uff1a<\/strong>\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3067\u5fa9\u65e7\u624b\u9806\u3092\u5b9a\u671f\u7684\u306b\u30c6\u30b9\u30c8\u3059\u308b\u3002<\/li>\n<\/ul>\n<h2>\u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74 \u26a0\ufe0f<\/h2>\n<p>\u826f\u597d\u306b\u8a2d\u8a08\u3055\u308c\u305fERD\u3067\u3042\u3063\u3066\u3082\u3001\u5b9f\u88c5\u30a8\u30e9\u30fc\u304c\u30b7\u30b9\u30c6\u30e0\u3092\u640d\u306a\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u4e00\u822c\u7684\u306a\u554f\u984c\u306b\u6ce8\u610f\u3092\u6255\u3046\u3079\u304d\u3067\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u30cf\u30fc\u30c9\u30b3\u30fc\u30c9\u3055\u308c\u305f\u30c6\u30ca\u30f3\u30c8\u30ed\u30b8\u30c3\u30af\uff1a<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u306b\u30c6\u30ca\u30f3\u30c8ID\u3092\u30cf\u30fc\u30c9\u30b3\u30fc\u30c9\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u8a2d\u5b9a\u307e\u305f\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<li><strong>\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570:<\/strong>\u30ea\u30af\u30a8\u30b9\u30c8\u9593\u3067\u6c38\u7d9a\u5316\u3055\u308c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306b\u30c6\u30ca\u30f3\u30c8\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u683c\u7d0d\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u5236\u7d04\u306e\u6b20\u5982:<\/strong> \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c<code>tenant_id<\/code>\u4e00\u610f\u6027\u3092\u5f37\u5236\u3057\u306a\u3044\u5834\u5408\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u305d\u308c\u3092\u53b3\u5bc6\u306b\u691c\u8a3c\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u5206\u6790\u306e\u7121\u8996:<\/strong>\u30ec\u30dd\u30fc\u30c8\u4f5c\u6210\u306e\u305f\u3081\u306b\u8907\u6570\u306e\u30c6\u30ca\u30f3\u30c8\u306b\u308f\u305f\u3063\u3066\u30c7\u30fc\u30bf\u3092\u96c6\u8a08\u3059\u308b\u306b\u306f\u3001\u6ce8\u610f\u6df1\u3044\u51e6\u7406\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u6a5f\u5bc6\u60c5\u5831\u304c\u6df7\u5728\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<h2>\u547d\u540d\u898f\u5247\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9 \ud83c\udff7\ufe0f<\/h2>\n<p>\u547d\u540d\u306e\u4e00\u8cab\u6027\u306f\u3001\u958b\u767a\u8005\u304c\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5373\u5ea7\u306b\u7406\u89e3\u3059\u308b\u306e\u3092\u52a9\u3051\u307e\u3059\u3002\u5171\u6709\u30b9\u30ad\u30fc\u30de\u5185\u306b\u30c6\u30ca\u30f3\u30c8\u56fa\u6709\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u3001\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u307e\u305f\u306f\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3057\u3066\u305d\u308c\u3089\u3092\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><strong>\u30c6\u30fc\u30d6\u30eb\u540d:<\/strong> <code>tenant_<strong>name<\/strong>_orders<\/code> \u307e\u305f\u306f <code>orders_tenant_<strong>id<\/strong><\/code>.<\/li>\n<li><strong>\u30ab\u30e9\u30e0\u540d:<\/strong> \u5e38\u306b<code>tenant_id<\/code>\u3059\u3079\u3066\u306e\u30ec\u30b3\u30fc\u30c9\u30c6\u30fc\u30d6\u30eb\u306b\u660e\u793a\u7684\u306b\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9:<\/strong> \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u540d\u524d\u3092\u660e\u78ba\u306b\u3057\u3001\u4f8b\u3048\u3070<code>idx_orders_tenant_id<\/code>.<\/li>\n<\/ul>\n<h2>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u9078\u629e\u306e\u7d50\u8ad6 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