{"id":6598,"date":"2024-11-20T18:00:00","date_gmt":"2024-11-20T09:00:00","guid":{"rendered":"https:\/\/techmania.jp\/blog\/?p=6598"},"modified":"2025-08-22T15:21:17","modified_gmt":"2025-08-22T06:21:17","slug":"sql-select","status":"publish","type":"post","link":"https:\/\/techmania.jp\/blog\/sql-select\/","title":{"rendered":"\u3010SQL\u3011\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308bSELECT\u6587\u306e\u4f7f\u3044\u65b9\u3092\u57fa\u790e\u304b\u3089\u89e3\u8aac"},"content":{"rendered":"<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3059\u308b\u69cb\u9020\u5316\u554f\u3044\u5408\u308f\u305b\u8a00\u8a9e\u300c<a href=\"https:\/\/techmania.jp\/blog\/sql0002\/\" target=\"_blank\" rel=\"noopener\">SQL<\/a>\u300d\u306e\u3046\u3061\u3001<a href=\"https:\/\/techmania.jp\/blog\/sql0002\/#outline__6_2\" target=\"_blank\" rel=\"noopener\">\u30c7\u30fc\u30bf\u64cd\u4f5c\u8a00\u8a9e\uff08DML\uff09<\/a>\u306b\u306f\u3001\u4ee5\u4e0b\u306e4\u7a2e\u985e\u306e\u6587\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>INSERT<\/td><td>\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b<\/td><\/tr><tr><td>SELECT<\/td><td>\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306e\u683c\u7d0d\u30c7\u30fc\u30bf\u3092\u691c\u7d22\u3059\u308b<\/td><\/tr><tr><td>UPDATE<\/td><td>\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306e\u683c\u7d0d\u30c7\u30fc\u30bf\u3092\u66f4\u65b0\u3059\u308b<\/td><\/tr><tr><td>DELETE<\/td><td>\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306e\u683c\u7d0d\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u306a\u304b\u3067\u3082\u30c7\u30fc\u30bf\u691c\u7d22\u306b\u7528\u3044\u308b\u300cSELECT\u300d\u6587\u306b\u3064\u3044\u3066\u57fa\u790e\u304b\u3089\u89e3\u8aac\u3057\u307e\u3059\u3002SQL\u3067\u306f\u5fc5\u305a\u4f7f\u7528\u3059\u308b\u57fa\u672c\u4e2d\u306e\u57fa\u672c\u3068\u3082\u3044\u3048\u308b\u30af\u30a8\u30ea\u3067\u3001\u5229\u7528\u6a5f\u4f1a\u3082\u591a\u3044\u306e\u3067\u3001\u305c\u3072\u3053\u306e\u6a5f\u4f1a\u306b\u899a\u3048\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n<h3 id=\"outline__0_1\" class=\"wp-block-heading\">\u57fa\u790e\u77e5\u8b58<\/h3>\n\n\n<p>SELECT\u6587\u306e\u8aac\u660e\u306b\u5165\u308b\u524d\u306b\u4e8b\u524d\u77e5\u8b58\u3068\u3057\u3066\u672c\u8a18\u4e8b\u3067\u7528\u3044\u308b\u7528\u8a9e\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002\u308f\u304b\u308b\u4eba\u306f\u8aad\u307f\u98db\u3070\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"borderBox\">\n<ul>\n<li>\u8868\uff1a\u300c\u30c6\u30fc\u30d6\u30eb\u300d<\/li>\n<li>\u5217\uff1a\u300c\u30ab\u30e9\u30e0\u300d<\/li>\n<li>\u884c\uff1a\u300c\u30ec\u30b3\u30fc\u30c9\u300d<\/li>\n<li>\u5024\uff1a\u300c\u30c7\u30fc\u30bf\u300d<\/li>\n<\/ul>\n<\/div>\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\">SELECT\u6587\u3068\u306f<\/h2>\n\n\n<p><span style=\"color: #000000;\">SELECT\u6587\u306f\u3001\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306b\u683c\u7d0d\u3057\u3066\u3042\u308b\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u969b\u306b\u7528\u3044\u3089\u308c\u308b\u30af\u30a8\u30ea\uff08\u554f\u3044\u5408\u308f\u305b\uff09\u3067\u3059\u3002<\/span><\/p>\n\n\n<div style=\"margin-top:4%;\">\n<p style=\"text-align:center; text-decoration:underline blue; font-weight:bold;\"><a href=\"https:\/\/techmania.jp\/lp\/2\">\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u790e\u304b\u3089\u30b5\u30a4\u30c8\u5236\u4f5c\u307e\u3067<br>\u2193\u5b9f\u8df5\u529b\u304c\u8eab\u306b\u3064\u304f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u2193<\/a><\/p>\n<\/div>\n<div style=\"text-align:center; margin-top:1%;\"><a href=\"https:\/\/techmania.jp\/lp\/2\"><img decoding=\"async\" style=\"width:300px;\" alt=\"IT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u6821 \u30c6\u30c3\u30af\u30de\u30cb\u30a2\u30b9\u30af\u30fc\u30eb\" src=\"https:\/\/techmania.jp\/blog\/wp-content\/uploads\/2023\/05\/sc4.jpg\"><\/a><\/div>\n<div style=\"margin-top:-0.3%;\">\n<p style=\"text-align:center; text-decoration:underline red; font-weight:bold;\"><a href=\"https:\/\/techmania.jp\/lp\/2\"><font color=\"red\">\u226b\u30e2\u30cb\u30bf\u30fc\u5272\u5f15\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u5b9f\u65bd\u4e2d\uff01\u226a<\/font><\/a><\/p>\n<\/div>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\">SELECT\u6587\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n<p>\u3053\u3053\u304b\u3089\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u7528\u3044\u3066SELECT\u6587\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u8aac\u660e\u306b\u306f\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n<h4 id=\"outline__2_1_1\" class=\"wp-block-heading\">\u3010\u30b5\u30f3\u30d7\u30eb\u30c6\u30fc\u30d6\u30eb\u3011<\/h4>\n\n\n<p><strong>\u300c\u751f\u5f92\uff08students\uff09\u300d\u30c6\u30fc\u30d6\u30eb<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u751f\u5f92ID\uff08student_id\uff09<\/strong><\/td><td><strong>\u6c0f\u540d\uff08name\uff09<\/strong><\/td><td><strong>\u6027\u5225\uff08gender\uff09<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><td>F<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><td>F<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><td>F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p><strong>\u300c\u30c6\u30b9\u30c8\uff08test\uff09\u300d\u30c6\u30fc\u30d6\u30eb<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>ID\uff08id\uff09<\/strong><\/td><td><strong>\u70b9\u6570\uff08point\uff09<\/strong><\/td><\/tr><tr><td>0001<\/td><td>80<\/td><\/tr><tr><td>0002<\/td><td>100<\/td><\/tr><tr><td>0003<\/td><td>65<\/td><\/tr><tr><td>0004<\/td><td>75<\/td><\/tr><tr><td>0005<\/td><td>60<\/td><\/tr><tr><td>0006<\/td><td>90<\/td><\/tr><tr><td>0007<\/td><td>55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 id=\"outline__2_1_2\" class=\"wp-block-heading\">\u57fa\u672c\u69cb\u6587<\/h4>\n\n\n<p>SELECT\u53e5\u306f\u57fa\u672c\u7684\u306b\u6b21\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d1,\u30ab\u30e9\u30e0\u540d2,<strong>\u30ab\u30e9\u30e0\u540d3<\/strong>,\u2026\u2026 FROM \u30c6\u30fc\u30d6\u30eb\u540d;<\/strong><\/code><\/pre>\n\n\n<p>\u53d6\u5f97\u3057\u305f\u3044\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u300c\u30c6\u30fc\u30d6\u30eb\u540d\u300d\u3068\u53d6\u5f97\u3057\u305f\u3044\u300c\u30ab\u30e9\u30e0\u540d\u300d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<div class=\"pointBox\">\n<p>\u8907\u6570\u306e\u30ab\u30e9\u30e0\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u30ab\u30e9\u30e0\u540d\u540c\u58eb\u3092\u300c,\uff08\u30ab\u30f3\u30de\uff09\u300d\u3067\u3064\u306a\u304e\u307e\u3059\u3002<\/p>\n<\/div>\n<p>\u5168\u3066\u306e\u30ab\u30e9\u30e0\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u306f\u5168\u3066\u306e\u30ab\u30e9\u30e0\u540d\u3092\u8a18\u8ff0\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u300c*\uff08\u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff09\u300d\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u57fa\u672c\u69cb\u6587\u3092\u6b21\u306e\u3088\u3046\u306a\u30af\u30a8\u30ea\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u62bd\u51fa\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"borderBox\">\n<ul>\n<li>JOIN\uff08\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u306e\u7d50\u5408\uff09<\/li>\n<li>WHERE\uff08\u7d5e\u308a\u8fbc\u307f\u6761\u4ef6\u306e\u6307\u5b9a\uff09<\/li>\n<li>HAVING\uff08\u30b0\u30eb\u30fc\u30d7\u5316\u5f8c\u306e\u7d5e\u308a\u8fbc\u307f\u6761\u4ef6\u306e\u6307\u5b9a\uff09<\/li>\n<li>GROUP BY\uff08\u30b0\u30eb\u30fc\u30d7\u5316\uff09<\/li>\n<li>ORDER BY\uff08\u30bd\u30fc\u30c8\u9806\u306e\u6307\u5b9a\uff09<\/li>\n<li>LIMIT\uff08\u62bd\u51fa\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u6570\u306e\u6307\u5b9a\uff09<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u3053\u304b\u3089\u306f\u7528\u9014\u3054\u3068\u306b\u4f7f\u3044\u65b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_2\" class=\"wp-block-heading\">\u3010\u7528\u90141\u3011\u7279\u5b9a\u306e\u30ab\u30e9\u30e0\u306e\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308b<\/h3>\n\n\n<p>1\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u4e2d\u3067\u6307\u5b9a\u3057\u305f\u30ab\u30e9\u30e0\u3092\u51fa\u529b\u3059\u308b\u5834\u5408\u306f\u3001\u57fa\u672c\u69cb\u6587\u306e\u66f8\u304d\u65b9\u3092\u305d\u306e\u307e\u307e\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>1\u3064\u306e\u30ab\u30e9\u30e0\u3092\u62bd\u51fa\u3059\u308b\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f62\u3067\u30af\u30a8\u30ea\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d;<\/strong><\/code><\/pre>\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u306e\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u300c\u6c0f\u540d\u300d\u30ab\u30e9\u30e0\u3092\u62bd\u51fa\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT name FROM students;<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>name<\/strong><\/td><\/tr><tr><td>\u79cb\u5c71<\/td><\/tr><tr><td>\u4e45\u4fdd\u7530<\/td><\/tr><tr><td>\u4f50\u3005\u6728<\/td><\/tr><tr><td>\u4f50\u85e4<\/td><\/tr><tr><td>\u9234\u6728<\/td><\/tr><tr><td>\u7530\u4e2d<\/td><\/tr><tr><td>\u571f\u5c4b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_3\" class=\"wp-block-heading\">\u3010\u7528\u90142\u3011\u8907\u6570\u306e\u30ab\u30e9\u30e0\u306e\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308b<\/h3>\n\n\n<p>\u5b9f\u969b\u306bSELECT\u6587\u3092\u4f7f\u7528\u3059\u308b\u5834\u9762\u3067\u306f1\u3064\u306e\u30ab\u30e9\u30e0\u3060\u3051\u3092\u62bd\u51fa\u3059\u308b\u3053\u3068\u306f\u3042\u307e\u308a\u306a\u304f\u3001\u57fa\u672c\u7684\u306b\u306f\u8907\u6570\u306e\u30ab\u30e9\u30e0\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u8907\u6570\u306e\u30ab\u30e9\u30e0\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u30ab\u30e9\u30e0\u540d\u306e\u9593\u3092\u300c,\uff08\u30ab\u30f3\u30de\uff09\u300d\u3067\u533a\u5207\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d1,\u30ab\u30e9\u30e0\u540d2,\u30ab\u30e9\u30e0\u540d3,\u2026\u2026 FROM \u30c6\u30fc\u30d6\u30eb\u540d;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300c\u751f\u5f92ID\u300d\u30ab\u30e9\u30e0\u3068\u300c\u6c0f\u540d\u300d\u30ab\u30e9\u30e0\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT student_id,name FROM students;<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>student_id<\/strong><\/td><td><strong>name<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_4\" class=\"wp-block-heading\">\u3010\u7528\u90143\u3011\u5168\u30ab\u30e9\u30e0\u306e\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308b<\/h3>\n\n\n<p>\u5168\u30ab\u30e9\u30e0\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u7528\u90142\u306e\u8981\u9818\u3067\u3059\u3079\u3066\u306e\u30ab\u30e9\u30e0\u540d\u3092\u4e00\u3064\u305a\u3064\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u300c*\uff08\u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff09\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3082\u540c\u3058\u610f\u5473\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u300c*\uff08\u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff09\u300d\u306f\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u3067\u3001\u6761\u4ef6\u306b\u5f53\u3066\u306f\u307e\u308b\u5168\u3066\u306e\u3082\u306e\u30921\u6587\u5b57\u3067\u8868\u73fe\u3057\u305f\u3044\u3068\u304d\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT * FROM \u30c6\u30fc\u30d6\u30eb\u540d;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u3059\u3079\u3066\u306e\u30ab\u30e9\u30e0\u3092\u62bd\u51fa\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT * FROM students;<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>student_id<\/strong><\/td><td><strong>name<\/strong><\/td><td><strong>gender<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><td>F<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><td>F<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><td>F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"exclamationBox\">\n<p>SELECT * FROM \u306e\u5f62\u5f0f\u3067\u30c6\u30fc\u30d6\u30eb\u5168\u4f53\u3092\u8aad\u307f\u8fbc\u3080\u3068\u3001\u5927\u304d\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306a\u308c\u3070\u306a\u308b\u307b\u3069\u30af\u30a8\u30ea\u306e\u51e6\u7406\u901f\u5ea6\u3084\u8ca0\u8377\u304c\u5927\u304d\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3069\u3046\u3057\u3066\u3082\u5168\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3057\u305f\u3044\u5834\u5408\u3092\u9664\u304d\u3001\u3067\u304d\u308b\u3060\u3051\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30c7\u30fc\u30bf\u3060\u3051\u3092\u8aad\u307f\u8fbc\u3080\u3088\u3046\u306a\u30af\u30a8\u30ea\u306e\u8a18\u8ff0\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<h3 id=\"outline__2_5\" class=\"wp-block-heading\">\u3010\u7528\u90144\u3011\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u306e\u307f\u62bd\u51fa\u3059\u308b<\/h3>\n\n\n<p>\u62bd\u51fa\u6761\u4ef6\u3092\u6307\u5b9a\u3057\u3001\u305d\u308c\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u306e\u307f\u3092\u62bd\u51fa\u3059\u308b\u5834\u5408\u306f<strong>WHERE\u53e5<\/strong>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>WHERE\u53e5\u3092\u4f7f\u7528\u3057\u3066\u6761\u4ef6\u306b\u5f53\u3066\u306f\u307e\u308b\u3082\u306e\u3060\u3051\u3092\u62bd\u51fa\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f62\u3067\u30af\u30a8\u30ea\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d WHERE \u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u30ab\u30e9\u30e0\u540d \u6bd4\u8f03\u6f14\u7b97\u5b50 \u6761\u4ef6\u5024;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300c\u6027\u5225\u300d\u30ab\u30e9\u30e0\u304c\u300cM\u300d\u3067\u3042\u308b\u30ec\u30b3\u30fc\u30c9\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT <strong>student_id<\/strong>,name FROM students WHERE gender='M';<\/strong><\/code><\/pre>\n\n\n<div class=\"exclamationBox\">\n<p>\u6761\u4ef6\u5024\u304c\u6587\u5b57\u306e\u5834\u5408\u306f\u305d\u306e\u6587\u5b57\u3092\u300c\u2019\uff08\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\uff09\u300d\u3067\u56f2\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6570\u5b57\u306e\u5834\u5408\u306f\u4e0d\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>student_id<\/strong><\/td><td><strong>name<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p><strong>\u25c6WHERE\u53e5\u3067\u4f7f\u7528\u53ef\u80fd\u306a\u6bd4\u8f03\u6f14\u7b97\u5b50<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u6f14\u7b97\u5b50<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u610f\u5473<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u4f8b<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">=<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u7b49\u3057\u3044<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 = 1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">&gt;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5927\u304d\u3044<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 &gt; 1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">&gt;=<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u4ee5\u4e0a<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 &gt;= 1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">&lt;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5c0f\u3055\u3044<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 &lt; 1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">&lt;=<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u4ee5\u4e0b<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 &lt;= 1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">!=<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u7b49\u3057\u304f\u306a\u3044<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 != 1000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u8907\u6570\u306e\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u306b\u306f\u3001\u300cAND\u300d\u3084\u300cOR\u300d\u306a\u3069\u306e\u8ad6\u7406\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u25c6WHERE\u53e5\u3067\u4f7f\u7528\u53ef\u80fd\u306a\u8ad6\u7406\u6f14\u7b97\u5b50\u306a\u3069<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u6f14\u7b97\u5b50<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u610f\u5473<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>\u4f8b<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">AND<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5de6\u8fba \u304b\u3064 \u53f3\u8fba<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 = 1000 AND \u5f93\u696d\u54e1\u756a\u53f7 = 1001<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">OR<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5de6\u8fba \u307e\u305f\u306f \u53f3\u8fba<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 = 1000 OR \u5f93\u696d\u54e1\u756a\u53f7 = 1001<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">BETWEEN A AND B<\/td><td class=\"has-text-align-center\" data-align=\"center\">A \u4ee5\u4e0a B \u4ee5\u4e0b<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 BETWEEN 1000 AND 2000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IN<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u3044\u305a\u308c\u304b\u3092\u542b\u3080<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5f93\u696d\u54e1\u756a\u53f7 IN (1000, 2000)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">LIKE<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u6587\u5b57\u5217\u306e1\u90e8\u3092\u542b\u3080\u30d1\u30bf\u30fc\u30f3<br>\u203b<br>% = 0\u6587\u5b57\u4ee5\u4e0a\u306e\u4efb\u610f\u306e\u6587\u5b57\u5217<br>_ = \u4efb\u610f\u306e1\u6587\u5b57<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u540d\u524d LIKE &#8216;A%&#8217;<br>\u540d\u524d LIKE &#8216;A_&#8217;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IS NULL<\/td><td class=\"has-text-align-center\" data-align=\"center\">NULL\u5024\u306e\u30d5\u30a3\u30fc\u30eb\u30c9<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u540d\u524d IS NULL<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">IS NOT NULL<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u5024\u306e\u3042\u308b\u30d5\u30a3\u30fc\u30eb\u30c9<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u540d\u524d IS NOT NULL<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u5404\u6f14\u7b97\u5b50\u306e\u4f7f\u3044\u65b9\u306a\u3069\u3001\u8a73\u3057\u304f\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<blockquote class=\"wp-embedded-content\" data-secret=\"uYwa3y8xrO\"><a href=\"https:\/\/techmania.jp\/blog\/sql0003\/\">\u3010SQL\u5165\u9580\u3011WHERE\u3067\u691c\u7d22\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u5165\u9580\u3011WHERE\u3067\u691c\u7d22\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql0003\/embed\/#?secret=2ySJmrbsEC#?secret=uYwa3y8xrO\" data-secret=\"uYwa3y8xrO\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n\n\n\n<blockquote class=\"wp-embedded-content\" data-secret=\"iCskxxvU7t\"><a href=\"https:\/\/techmania.jp\/blog\/sql-like\/\">\u3010SQL\u3011\u30c7\u30fc\u30bf\u306e\u66d6\u6627\u691c\u7d22\u300cLIKE\u53e5\u300d\u306e\u4f7f\u3044\u65b9\uff01\u5b8c\u5168\u4e00\u81f4\u30fb\u90e8\u5206\u4e00\u81f4\u30fb\u5426\u5b9a\u5f62\u3082\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u3011\u30c7\u30fc\u30bf\u306e\u66d6\u6627\u691c\u7d22\u300cLIKE\u53e5\u300d\u306e\u4f7f\u3044\u65b9\uff01\u5b8c\u5168\u4e00\u81f4\u30fb\u90e8\u5206\u4e00\u81f4\u30fb\u5426\u5b9a\u5f62\u3082\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql-like\/embed\/#?secret=FDJIToBuIe#?secret=iCskxxvU7t\" data-secret=\"iCskxxvU7t\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n\n\n<p><strong>\u3010\u756a\u5916\u7de8\u3011<\/strong>\u8ad6\u7406\u6f14\u7b97\u5b50\u3092\u8907\u6570\u4f7f\u3063\u3066\u3001\u8907\u96d1\u306a\u691c\u7d22\u3092\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u751f\u5f92ID\u304c0001\uff5e0003\u3067\u3042\u308a\u3001\u304b\u3064\u6c0f\u540d\u306b\u300c\u7530\u300d\u304c\u3064\u304f\u751f\u5f92\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT * FROM students WHERE student_id BETWEEN 0001 AND 0003 AND name LIKE '%\u7530%';<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>student_id<\/strong><\/td><td><strong>name<\/strong><\/td><td><strong>gender<\/strong><\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>1\u500b\u76ee\u306eAND\u306fBETWEEN\u53e5\u306b\u30012\u500b\u76ee\u306eAND\u306f\u6f14\u7b97\u5b50\u3068\u3057\u3066\u4f5c\u7528\u3057\u3066\u3044\u307e\u3059\u3002AND\u6f14\u7b97\u5b50\u3067\u3059\u306e\u3067\u3069\u3061\u3089\u306e\u6761\u4ef6\u3082\u6e80\u305f\u3059\u4e45\u4fdd\u7530\u3055\u3093\u3060\u3051\u304c\u62bd\u51fa\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n<h3 id=\"outline__2_6\" class=\"wp-block-heading\">\u3010\u7528\u90145\u3011\u30c7\u30fc\u30bf\u3092\u6607\u9806\u307e\u305f\u306f\u964d\u9806\u3067\u8868\u793a\u3059\u308b<\/h3>\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u6607\u9806\u307e\u305f\u306f\u964d\u9806\u306b\u4e26\u3079\u3066\u8868\u793a\u3057\u307e\u3059\u3002ASC\u306f\u6607\u9806\uff08\u5c0f\u3055\u3044\u3082\u306e\u304b\u3089\u5927\u304d\u3044\u3082\u306e\u3078\uff09\u3001DESC\u306f\u964d\u9806\uff08\u5927\u304d\u3044\u3082\u306e\u304b\u3089\u5c0f\u3055\u3044\u3082\u306e\u3078\uff09\u3067\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d ORDER BY \u4e26\u3073\u9806\u306e\u57fa\u6e96\u3068\u306a\u308b\u30ab\u30e9\u30e0\u540d ASC\u307e\u305f\u306fDESC;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u30c6\u30b9\u30c8\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300c\u70b9\u6570\u300d\u30ab\u30e9\u30e0\u3092\u6607\u9806\u3067\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT * FROM test ORDER BY point ASC;<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>id<\/strong><\/td><td><strong>point<\/strong><\/td><\/tr><tr><td>0007<\/td><td>55<\/td><\/tr><tr><td>0005<\/td><td>60<\/td><\/tr><tr><td>0003<\/td><td>65<\/td><\/tr><tr><td>0004<\/td><td>75<\/td><\/tr><tr><td>0001<\/td><td>80<\/td><\/tr><tr><td>0006<\/td><td>90<\/td><\/tr><tr><td>0002<\/td><td>100<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_7\" class=\"wp-block-heading\">\u3010\u7528\u90146\u3011\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u3092\u6607\u9806\u307e\u305f\u306f\u964d\u9806\u3067\u8868\u793a\u3059\u308b<\/h3>\n\n\n<p>\u62bd\u51fa\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u3092\u6607\u9806\u307e\u305f\u306f\u964d\u9806\u306b\u4e26\u3079\u3066\u8868\u793a\u3057\u307e\u3059\u3002ASC\u306f\u6607\u9806\uff08\u5c0f\u3055\u3044\u3082\u306e\u304b\u3089\u5927\u304d\u3044\u3082\u306e\u3078\uff09\u3001DESC\u306f\u964d\u9806\uff08\u5927\u304d\u3044\u3082\u306e\u304b\u3089\u5c0f\u3055\u3044\u3082\u306e\u3078\uff09\u3067\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d WHERE \u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u30ab\u30e9\u30e0\u540d \u6bd4\u8f03\u6f14\u7b97\u5b50 \u6761\u4ef6\u5024 ORDER BY \u4e26\u3073\u9806\u306e\u57fa\u6e96\u3068\u306a\u308b\u30ab\u30e9\u30e0\u540d ASC\u307e\u305f\u306fDESC;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300c\u6027\u5225\u300d\u30ab\u30e9\u30e0\u304c\u300cM\u300d\u3067\u3042\u308b\u30ec\u30b3\u30fc\u30c9\u3092\u964d\u9806\u3067\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT * FROM students WHERE gender='M' ORDER BY student_id DESC;<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>student_id<\/strong><\/td><td><strong>name<\/strong><\/td><td><strong>gender<\/strong><\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_8\" class=\"wp-block-heading\">\u3010\u7528\u90147\u3011\u30b0\u30eb\u30fc\u30d7\u3054\u3068\u306e\u30ec\u30b3\u30fc\u30c9\u6570\u3092\u53d6\u5f97\u3059\u308b<\/h3>\n\n\n<p>\u4efb\u610f\u306e\u30ab\u30e9\u30e0\u306e\u5024\u306b\u57fa\u3065\u3044\u3066\u30ec\u30b3\u30fc\u30c9\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3057\u3001\u30b0\u30eb\u30fc\u30d7\u3054\u3068\u306e\u30ec\u30b3\u30fc\u30c9\u6570\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u96c6\u8a08\u95a2\u6570\uff08SUM\u3084COUNT\u306a\u3069\uff09\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u30b0\u30eb\u30fc\u30d7\u3054\u3068\u306e\u5408\u8a08\u5024\u3084\u30ec\u30b3\u30fc\u30c9\u6570\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d GROUP BY \u30b0\u30eb\u30fc\u30d7\u5316\u3092\u884c\u3046\u30ab\u30e9\u30e0\u540d;<\/strong><\/code><\/pre>\n\n\n<div class=\"exclamationBox\">\n<p>\u300c\u30ab\u30e9\u30e0\u540d\u300d\u3068\u300c\u30b0\u30eb\u30fc\u30d7\u5316\u3092\u884c\u3046\u30ab\u30e9\u30e0\u540d\u300d\u3092\u7d71\u4e00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300c\u6027\u5225\u300d\u30ab\u30e9\u30e0\u3067\u7537\u5973\u5225\u306e\u4eba\u6570\u3092\u6c42\u3081\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT gender AS '\u6027\u5225', COUNT(gender) AS '\u4eba\u6570' FROM students GROUP BY gender;<\/strong><\/code><\/pre>\n\n\n<p><span style=\"color: #0000ff;\"><span style=\"color: #000000;\">\u300cAS\u300d\u3067\u7d50\u679c\u3092\u8868\u793a\u3059\u308b\u969b\u306e\u30ab\u30e9\u30e0\u540d\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u30ab\u30e9\u30e0\u540d\u306e\u5f8c\u308d\u306b\u300cAS\u300d\u3092\u3064\u3051\u3001\u305d\u306e\u5f8c\u308d\u306b\u8868\u793a\u3055\u305b\u305f\u3044\u540d\u524d\u3092\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/span><\/span><\/p>\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u6027\u5225<\/strong><\/td><td><strong>\u4eba\u6570<\/strong><\/td><\/tr><tr><td>M<\/td><td>3<\/td><\/tr><tr><td>F<\/td><td>4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u96c6\u8a08\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306a\u3069\u3001\u8a73\u3057\u304f\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<blockquote class=\"wp-embedded-content\" data-secret=\"ooXZpJA0po\"><a href=\"https:\/\/techmania.jp\/blog\/sql-count\/\">\u3010SQL\u3011COUNT\u95a2\u6570\u3067\u30c7\u30fc\u30bf\u3092\u96c6\u8a08\u3059\u308b\uff01\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u8a73\u3057\u304f\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u3011COUNT\u95a2\u6570\u3067\u30c7\u30fc\u30bf\u3092\u96c6\u8a08\u3059\u308b\uff01\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u8a73\u3057\u304f\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql-count\/embed\/#?secret=p3HukNrkfw#?secret=ooXZpJA0po\" data-secret=\"ooXZpJA0po\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n\n\n\n<h3 id=\"outline__2_9\" class=\"wp-block-heading\">\u3010\u7528\u90148\u3011\u30b0\u30eb\u30fc\u30d7\u5316\u5f8c\u306b\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b<\/h3>\n\n\n<p>\u300cWHERE\u300d\u53e5\u304cGROUP BY\u53e5\u306e\u5b9f\u884c\u524d\u306b\u6761\u4ef6\u304c\u9069\u5fdc\u3055\u308c\u308b\u306e\u306b\u5bfe\u3057\u3001\u300cHAVING\u300d\u53e5\u306fGROUP BY\u53e5\u306e\u5b9f\u884c\u5f8c\u306b\u6761\u4ef6\u304c\u9069\u5fdc\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b0\u30eb\u30fc\u30d7\u5316\u306e\u524d\u306b\u4efb\u610f\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30ec\u30b3\u30fc\u30c9\u3092\u7701\u304f\u5834\u5408\u306f\u300cWHERE\u300d\u53e5\u3092\u4f7f\u3044\u3001\u30b0\u30eb\u30fc\u30d7\u5316\u5f8c\u306b\u4efb\u610f\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u30b0\u30eb\u30fc\u30d7\u3092\u7701\u304f\u5834\u5408\u306b\u300cHAVING\u300d\u53e5\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u8a73\u3057\u304f\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<blockquote class=\"wp-embedded-content\" data-secret=\"m4zCpBwHP2\"><a href=\"https:\/\/techmania.jp\/blog\/sql-group-by\/\">\u3010SQL\u3011\u300cGROUP BY\u300d\u53e5\u3068\u306f\uff1f\u4f7f\u3044\u65b9\u3001\u96c6\u8a08\u95a2\u6570\u306a\u3069\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3082\u8a73\u3057\u304f\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u3011\u300cGROUP BY\u300d\u53e5\u3068\u306f\uff1f\u4f7f\u3044\u65b9\u3001\u96c6\u8a08\u95a2\u6570\u306a\u3069\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3082\u8a73\u3057\u304f\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql-group-by\/embed\/#?secret=BojupH8Gro#?secret=m4zCpBwHP2\" data-secret=\"m4zCpBwHP2\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n\n\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d GROUP BY \u30b0\u30eb\u30fc\u30d7\u5316\u3092\u884c\u3046\u30ab\u30e9\u30e0\u540d HAVING \u6761\u4ef6\u5f0f;<\/strong><\/code><\/pre>\n\n\n<p><span style=\"font-size: revert; color: initial;\">\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u7537\u5973\u5225\u306b\u306a\u3063\u305f\u30b0\u30eb\u30fc\u30d7\u306e\u3046\u3061\u30014\u4eba\u4ee5\u4e0a\u306e\u30b0\u30eb\u30fc\u30d7\u306e\u307f\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT gender AS '\u6027\u5225', COUNT(gender) AS '\u4eba\u6570' FROM test GROUP BY gender HAVING 4&lt;='\u4eba\u6570';<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u6027\u5225<\/strong><\/td><td><strong>\u4eba\u6570<\/strong><\/td><\/tr><tr><td>F<\/td><td>4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_10\" class=\"wp-block-heading\">\u3010\u7528\u90149\u3011\u30c6\u30fc\u30d6\u30eb\u540c\u58eb\u3092\u7d10\u3065\u3051\u308b<\/h3>\n\n\n<p>JOIN\u53e5\u3067\u30c6\u30fc\u30d6\u30eb\u540c\u58eb\u306e\u7d10\u3065\u3051\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT \u30ab\u30e9\u30e0\u540d FROM \u30c6\u30fc\u30d6\u30eb\u540d1 JOIN \u30c6\u30fc\u30d6\u30eb\u540d2 ON \u7d50\u5408\u6761\u4ef6;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300c\u751f\u5f92ID\u300d\u30ab\u30e9\u30e0\u3092\u4e3b\u30ad\u30fc\u3001\u300c\u30c6\u30b9\u30c8\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u300cID\u300d\u30ab\u30e9\u30e0\u3092\u5916\u90e8\u30ad\u30fc\u3068\u3057\u30662\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u7d10\u3065\u3051\u307e\u3059\u3002<\/p>\n<p>\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u3067\u305d\u308c\u305e\u308c\u306e\u30c6\u30fc\u30d6\u30eb\u5185\u306e\u30ab\u30e9\u30e0\u3092\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u300c.\u300d\uff08\u30d4\u30ea\u30aa\u30c9\uff09\u3092\u4f7f\u7528\u3057\u3066 <strong>\u30c6\u30fc\u30d6\u30eb\u540d.\u30ab\u30e9\u30e0\u540d<\/strong> \u3068\u3044\u3046\u5f62\u5f0f\u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>SELECT * FROM students LEFT OUTER JOIN test ON students.student_id=test.id;<\/strong><\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><strong>student_id<\/strong><\/strong><\/td><td><strong>name<\/strong><\/td><td><strong>gender<\/strong><\/td><td><strong>point<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><td>80<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><td>100<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><td>F<\/td><td>65<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><td>75<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><td>F<\/td><td>60<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><td>90<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><td>F<\/td><td>55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u3053\u306e\u307b\u304b\u306b\u3082\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u3063\u3066\u7528\u9014\u306f\u3055\u307e\u3056\u307e\u3067\u3059\u304c\u3001\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u4e00\u901a\u308a\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\">\u30af\u30a8\u30ea\u306e\u8a18\u8ff0\u9806\u5e8f\u3068\u5b9f\u884c\u9806\u5e8f<\/h2>\n\n\n<p>\u3010\u7528\u90146\u3011\u3067\u306f\u300cWHERE\u300d\u53e5\u3068\u300cORDER BY\u300d\u53e5\u3092\u4f75\u7528\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308b\u969b\u3001\u30af\u30a8\u30ea\u3092\u4f75\u7528\u3057\u3066\u4f7f\u3046\u3053\u3068\u306f\u4e00\u822c\u7684\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u8a18\u8ff0\u9806\u3068\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u9806\u5e8f\u306f\u7570\u306a\u308b\u306e\u3067\u3001\u5b9f\u884c\u9806\u5e8f\u3092\u610f\u8b58\u3057\u3066\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__3_1\" class=\"wp-block-heading\">SQL\u306e\u8a18\u8ff0\u9806\u5e8f<\/h3>\n\n\n<div class=\"bgBox\">\n<ol>\n<li>SELECT\uff08\u62bd\u51fa\u3059\u308b\u30ab\u30e9\u30e0\u306e\u6307\u5b9a\uff09<\/li>\n<li>FROM\uff08\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u306e\u6307\u5b9a\uff09<\/li>\n<li>JOIN\uff08\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u306e\u7d50\u5408\uff09<\/li>\n<li>WHERE\uff08\u7d5e\u308a\u8fbc\u307f\u6761\u4ef6\u306e\u6307\u5b9a\uff09<\/li>\n<li>GROUP BY\uff08\u30b0\u30eb\u30fc\u30d7\u5316\uff09<\/li>\n<li>HAVING\uff08\u30b0\u30eb\u30fc\u30d7\u5316\u5f8c\u306e\u7d5e\u308a\u8fbc\u307f\u6761\u4ef6\u306e\u6307\u5b9a\uff09<\/li>\n<li>ORDER BY\uff08\u30bd\u30fc\u30c8\u9806\u306e\u6307\u5b9a\uff09<\/li>\n<li>LIMIT\uff08\u62bd\u51fa\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u6570\u306e\u6307\u5b9a\uff09<span style=\"color: #0000ff;\"><br \/><\/span><\/li>\n<\/ol>\n<\/div>\n\n\n<h3 id=\"outline__3_2\" class=\"wp-block-heading\">SQL\u306e\u5b9f\u884c\u9806\u5e8f<\/h3>\n\n\n<div class=\"bgBox\">\n<ol>\n<li>FROM\uff08\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u306e\u6307\u5b9a\uff09<\/li>\n<li>JOIN\uff08\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u306e\u7d50\u5408\uff09<\/li>\n<li>WHERE\uff08\u7d5e\u308a\u8fbc\u307f\u6761\u4ef6\u306e\u6307\u5b9a\uff09<\/li>\n<li>GROUP BY\uff08\u30b0\u30eb\u30fc\u30d7\u5316\uff09<\/li>\n<li>HAVING\uff08\u30b0\u30eb\u30fc\u30d7\u5316\u5f8c\u306e\u7d5e\u308a\u8fbc\u307f\u6761\u4ef6\u306e\u6307\u5b9a\uff09<\/li>\n<li>SELECT\uff08\u62bd\u51fa\u3059\u308b\u30ab\u30e9\u30e0\u306e\u6307\u5b9a\uff09<\/li>\n<li>ORDER BY\uff08\u30bd\u30fc\u30c8\u9806\u306e\u6307\u5b9a\uff09<\/li>\n<li>LIMIT\uff08\u62bd\u51fa\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u6570\u306e\u6307\u5b9a\uff09<\/li>\n<\/ol>\n<\/div>\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\">SELECT\u6587\u3092\u4f7f\u3046\u969b\u306e\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<p>SQL\u3067\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306b\u306f\u5fc5\u9808\u306eSELECT\u6587\u3067\u3059\u304c\u3001\u4f7f\u3044\u65b9\u306b\u306f\u3044\u304f\u3064\u304b\u6c17\u3092\u4ed8\u3051\u308b\u3079\u304d\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__4_1\" class=\"wp-block-heading\">\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3060\u3051\u3092\u53d6\u5f97\u3059\u308b\u3088\u3046\u306b\u3059\u308b<\/h3>\n\n\n\n<p><strong>SELECT * FROM<\/strong> \u3067\u30c6\u30fc\u30d6\u30eb\u5185\u306e\u5168\u3066\u306e\u30ab\u30e9\u30e0\u3092\u53d6\u5f97\u3059\u308b\u306e\u306f\u624b\u8efd\u3067\u4fbf\u5229\u3067\u3059\u304c\u3001\u30c6\u30fc\u30d6\u30eb\u304c\u5927\u304d\u304f\u306a\u308b\u307b\u3069\u3001\u30af\u30a8\u30ea\u3092\u51e6\u7406\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u3084\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u8ca0\u8377\u306a\u3069\u304c\u5897\u5927\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>SELECT\u6587\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u306f\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u304c\u5165\u3063\u3066\u3044\u308b\u30ab\u30e9\u30e0\u3060\u3051\u3092\u62bd\u51fa\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>WHERE\u53e5\u3067\u6761\u4ef6\u3092\u6307\u5b9a\u3057\u3066\u30c7\u30fc\u30bf\u306e\u7bc4\u56f2\u3092\u7d5e\u308a\u8fbc\u3080\u3053\u3068\u3082\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__4_2\" class=\"wp-block-heading\">WHERE\u2192HAVING\u306e\u9806\u756a\u3067\u30c7\u30fc\u30bf\u306e\u7bc4\u56f2\u3092\u7d5e\u308a\u8fbc\u3080\u3088\u3046\u306b\u610f\u8b58\u3059\u308b<\/h3>\n\n\n\n<p>\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3060\u3051\u3092\u53d6\u5f97\u3059\u308b\u306e\u3068\u540c\u6642\u306b\u3001\u30c7\u30fc\u30bf\u306e\u7bc4\u56f2\u3092\u7d5e\u308a\u8fbc\u3080\u969b\u306b\u306fWHERE\u3068HAVING\u306e\u4f7f\u3044\u5206\u3051\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u9ad8\u901f\u306b\u30af\u30a8\u30ea\u3092\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u3001GROUP BY\u306fWHERE\u3068HAVING\u306e\u9593\u306b\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001\u5fc5\u305aWHERE &#8230; GROUP BY &#8230; HAVING\u306e\u9806\u756a\u3067\u66f8\u304f\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\">\u307b\u304b\u306eDML\uff08\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u30fb\u66f4\u65b0\u30fb\u524a\u9664\uff09<\/h2>\n\n\n<p>SELECT\u3068\u540c\u69d8\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u64cd\u4f5c\u3059\u308b\u4e0a\u3067\u3088\u304f\u4f7f\u3046\u51e6\u7406\u304c\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u3084\u66f4\u65b0\u3001\u524a\u9664\u3067\u3059\u3002\u5225\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u7c21\u5358\u306b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n<h4 id=\"outline__5_2_1\" class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u300cINSERT\u6587\u300d<\/h4>\n\n\n<p>\u30c6\u30fc\u30d6\u30eb\u306b\u65b0\u898f\u306e\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u306f<a href=\"https:\/\/techmania.jp\/blog\/sql-insert\/\" target=\"_blank\" rel=\"noopener\">INSERT\u6587<\/a>\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>INSERT INTO \u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u540d (\u30ab\u30e9\u30e0\u540d1,\u30ab\u30e9\u30e0\u540d2,\u2026\u2026) VALUES(\u30ab\u30e9\u30e01\u306b\u5165\u308c\u308b\u5024,\u30ab\u30e9\u30e02\u306b\u5165\u308c\u308b\u5024,\u2026\u2026);<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306b\u4e00\u4eba\u306e\u751f\u5f92\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>INSERT INTO students (student_id,<strong>name<\/strong>,<strong>gender<\/strong>) VALUES(0008,'\u4e2d\u6751','M');<\/strong><\/code><\/pre>\n\n\n<p>SELECT\u6587\u3067\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u751f\u5f92ID\uff08student_id\uff09<\/strong><\/td><td><strong>\u6c0f\u540d\uff08name\uff09<\/strong><\/td><td><strong>\u6027\u5225\uff08gender\uff09<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><td>F<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><td>F<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><td>F<\/td><\/tr><tr><td>0008<\/td><td>\u4e2d\u6751<\/td><td>M<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u300c\u4e2d\u6751\u300d\u3068\u3044\u3046\u751f\u5f92\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n<p>\u25bcINSERT\u6587\u306e\u8a73\u3057\u3044\u4f7f\u3044\u65b9\u306f\u3053\u3061\u3089<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-techmania wp-block-embed-techmania\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"cEtmP5gu6x\"><a href=\"https:\/\/techmania.jp\/blog\/sql-insert\/\">\u3010SQL\u3011INSERT\u6587\u3067\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3002\u57fa\u790e\u304b\u3089\u5fdc\u7528\u4f8b\u307e\u3067\u8a73\u3057\u304f\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u3011INSERT\u6587\u3067\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3002\u57fa\u790e\u304b\u3089\u5fdc\u7528\u4f8b\u307e\u3067\u8a73\u3057\u304f\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql-insert\/embed\/#?secret=I7YAjj1bME#?secret=cEtmP5gu6x\" data-secret=\"cEtmP5gu6x\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h4 id=\"outline__5_2_2\" class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u306e\u66f4\u65b0\u300cUPDATE\u6587\u300d<\/h4>\n\n\n<p>\u30c7\u30fc\u30bf\u306e\u66f4\u65b0\u306b\u306f<a href=\"https:\/\/techmania.jp\/blog\/sql-update\/\" target=\"_blank\" rel=\"noopener\">UPDATE\u6587<\/a>\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>UPDATE \u30c6\u30fc\u30d6\u30eb\u540d\n SET \u30ab\u30e9\u30e0\u540d = \u5024 WHERE \u6761\u4ef6\u5f0f;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u4e2d\u6751\u3055\u3093\u306e\u751f\u5f92ID\u3092\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>UPDATE students SET student_id = '0009' WHERE name='\u4e2d\u6751';<\/strong><\/code><\/pre>\n\n\n<p>SELECT\u6587\u3067\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u751f\u5f92ID\uff08student_id\uff09<\/strong><\/td><td><strong>\u6c0f\u540d\uff08name\uff09<\/strong><\/td><td><strong>\u6027\u5225\uff08gender\uff09<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><td>F<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><td>F<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><td>F<\/td><\/tr><tr><td>0009<\/td><td>\u4e2d\u6751<\/td><td>M<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u4e2d\u6751\u3055\u3093\u306e\u751f\u5f92ID\u304c\u66f4\u65b0\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n<p>\u25bcUPDATE\u6587\u306e\u8a73\u3057\u3044\u4f7f\u3044\u65b9\u306f\u3053\u3061\u3089<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-techmania wp-block-embed-techmania\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"IdYMv8Ut46\"><a href=\"https:\/\/techmania.jp\/blog\/sql-update\/\">\u3010SQL\u3011UPDATE\u6587\u306e\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u89e3\u8aac\uff01\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u6761\u4ef6\u306b\u5408\u308f\u305b\u3066\u66f4\u65b0\u3059\u308b<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u3011UPDATE\u6587\u306e\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u89e3\u8aac\uff01\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u6761\u4ef6\u306b\u5408\u308f\u305b\u3066\u66f4\u65b0\u3059\u308b&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql-update\/embed\/#?secret=YzISO48EFZ#?secret=IdYMv8Ut46\" data-secret=\"IdYMv8Ut46\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h4 id=\"outline__5_2_3\" class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u306e\u524a\u9664\u300cDELETE\u6587\u300d<\/h4>\n\n\n<p>\u30c7\u30fc\u30bf\u306e\u524a\u9664\u306b\u306f<a href=\"https:\/\/techmania.jp\/blog\/sql-delete\/\" target=\"_blank\" rel=\"noopener\">DELETE\u6587<\/a>\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u4f7f\u7528\u30a4\u30e1\u30fc\u30b8\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong>DELETE FROM \u30c6\u30fc\u30d6\u30eb\u540d WHERE \u6761\u4ef6\u5f0f;<\/strong><\/code><\/pre>\n\n\n<p>\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u306e\u4e2d\u6751\u3055\u3093\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code><strong><strong>DELETE FROM<\/strong> students WHERE name='\u4e2d\u6751';<\/strong><\/code><\/pre>\n\n\n<p>SELECT\u6587\u3067\u300c\u751f\u5f92\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u751f\u5f92ID\uff08student_id\uff09<\/strong><\/td><td><strong>\u6c0f\u540d\uff08name\uff09<\/strong><\/td><td><strong>\u6027\u5225\uff08gender\uff09<\/strong><\/td><\/tr><tr><td>0001<\/td><td>\u79cb\u5c71<\/td><td>M<\/td><\/tr><tr><td>0002<\/td><td>\u4e45\u4fdd\u7530<\/td><td>F<\/td><\/tr><tr><td>0003<\/td><td>\u4f50\u3005\u6728<\/td><td>F<\/td><\/tr><tr><td>0004<\/td><td>\u4f50\u85e4<\/td><td>M<\/td><\/tr><tr><td>0005<\/td><td>\u9234\u6728<\/td><td>F<\/td><\/tr><tr><td>0006<\/td><td>\u7530\u4e2d<\/td><td>M<\/td><\/tr><tr><td>0007<\/td><td>\u571f\u5c4b<\/td><td>F<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u4e2d\u6751\u3055\u3093\u306e\u30c7\u30fc\u30bf\u304c\u524a\u9664\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n<p>\u25bcDELETE\u6587\u306e\u8a73\u3057\u3044\u4f7f\u3044\u65b9\u306f\u3053\u3061\u3089<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-techmania wp-block-embed-techmania\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"zxF5aT2qvB\"><a href=\"https:\/\/techmania.jp\/blog\/sql-delete\/\">\u3010SQL\u3011\u30c7\u30fc\u30bf\u524a\u9664\u300cDELETE\u6587\u300d\u306e\u4f7f\u3044\u65b9\u3002\u5168\u4ef6\u524a\u9664\u30fb\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u53c2\u7167\u3082\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;\u3010SQL\u3011\u30c7\u30fc\u30bf\u524a\u9664\u300cDELETE\u6587\u300d\u306e\u4f7f\u3044\u65b9\u3002\u5168\u4ef6\u524a\u9664\u30fb\u8907\u6570\u30c6\u30fc\u30d6\u30eb\u53c2\u7167\u3082\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/sql-delete\/embed\/#?secret=ERpNBMoXWs#?secret=zxF5aT2qvB\" data-secret=\"zxF5aT2qvB\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\">SQL\u95a2\u9023\u8a18\u4e8b<\/h2>\n\n\n<div class=\"bgBox\">\n<ul>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql0002\/\" target=\"_blank\" rel=\"noopener\">RDB\u3092\u64cd\u4f5c\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a00\u8a9e\u300cSQL\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/nosql-notonlysql\/\" target=\"_blank\" rel=\"noopener\">RDB\u4ee5\u5916\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u300cNoSQL\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/post-3185\/\" target=\"_blank\" rel=\"noopener\">RDB\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u300cMySQL\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/postgresql\/\" target=\"_blank\" rel=\"noopener\">RDB\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u300cPostgreSQL\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-server\/\" target=\"_blank\" rel=\"noopener\">RDB\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u300cSQL Server\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sqlite\/\" target=\"_blank\" rel=\"noopener\">RDB\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u300cSQLite\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-phpmyadmin\/\" target=\"_blank\" rel=\"noopener\">\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067MySQL\u3092\u7ba1\u7406\u3067\u304d\u308b\u300cphpMyAdmin\u300d\u3068\u306f\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-insert\/\" target=\"_blank\" rel=\"noopener\">\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b\u300cINSERT\u300d\u6587<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-delete\/\" target=\"_blank\" rel=\"noopener\">\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b\u300cDELETE\u300d\u6587<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-update\/\" target=\"_blank\" rel=\"noopener\">\u30c7\u30fc\u30bf\u3092\u66f4\u65b0\u3059\u308b\u300cUPDATE\u300d\u6587<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql0003\/\" target=\"_blank\" rel=\"noopener\">\u62bd\u51fa\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u300cWHERE\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-having\/\" target=\"_blank\" rel=\"noopener\">\u62bd\u51fa\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u300cHAVING\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql0004\/\" target=\"_blank\" rel=\"noopener\">\u8907\u6570\u306e\u62bd\u51fa\u6761\u4ef6\u3092\u307e\u3068\u3081\u308b\u300cIN\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-distinct\/\" target=\"_blank\" rel=\"noopener\">\u91cd\u8907\u30ec\u30b3\u30fc\u30c9\u3092\u9664\u5916\u3059\u308b\u300cDISTINCT\u300d<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql0005\/\" target=\"_blank\" rel=\"noopener\">\u62bd\u51fa\u7bc4\u56f2\u3092\u6307\u5b9a\u3059\u308b\u300cBETWEEN\u300d\u6f14\u7b97\u5b50<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-exists\/\" target=\"_blank\" rel=\"noopener\">\u62bd\u51fa\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30ec\u30b3\u30fc\u30c9\u306e\u5b58\u5728\u306e\u6709\u7121\u3092\u8abf\u3079\u308b\u300cEXISTS\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-count\/\" target=\"_blank\" rel=\"noopener\">\u30ec\u30b3\u30fc\u30c9\u4ef6\u6570\u3092\u53d6\u5f97\u3059\u308b\u96c6\u8a08\u95a2\u6570\u300cCOUNT\u300d\u95a2\u6570<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-group-by\/\" target=\"_blank\" rel=\"noopener\">\u30ec\u30b3\u30fc\u30c9\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u300cGROUP BY\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-order-by\/\" target=\"_blank\" rel=\"noopener\">\u62bd\u51fa\u7d50\u679c\u3092\u4e26\u3073\u66ff\u3048\u308b\u300cORDER BY\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-join\/\" target=\"_blank\" rel=\"noopener\">\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u30c7\u30fc\u30bf\u3092\u7d50\u5408\u3059\u308b\u300cJOIN\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-union\/\" target=\"_blank\" rel=\"noopener\">\u62bd\u51fa\u7d50\u679c\u3092\u7d71\u5408\u3057\u3066\u8868\u793a\u3059\u308b\u300cUNION\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-like\/\" target=\"_blank\" rel=\"noopener\">\u30c7\u30fc\u30bf\u306e\u66d6\u6627\u691c\u7d22\u300cLIKE\u300d\u53e5<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-case\/\" target=\"_blank\" rel=\"noopener\">\u6761\u4ef6\u5206\u5c90\u51e6\u7406\u300cCASE\u300d\u5f0f<\/a><\/li>\n<li><a href=\"https:\/\/techmania.jp\/blog\/sql-trim\/\">\u30c7\u30fc\u30bf\u306e\u6587\u5b57\u5217\u304b\u3089\u4f59\u767d\u3092\u53d6\u308a\u9664\u304f\u300cTRIM\u300d\u95a2\u6570<\/a><\/li>\n<\/ul>\n<\/div>\n\n\n<h2 id=\"outline__7\" class=\"wp-block-heading\">SQL\u306e\u52c9\u5f37\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n<p>\u66f8\u7c4d\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u5b66\u7fd2\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6628\u4eca\u3067\u306f\u3001YouTube\u306a\u3069\u306e\u52d5\u753b\u30b5\u30a4\u30c8\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30a4\u30c8\u306a\u3069\u3082\u5145\u5b9f\u3057\u3066\u3044\u3066\u591a\u304f\u306e\u60c5\u5831\u304c\u624b\u306b\u5165\u308a\u307e\u3059\u3002<br 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class=\"post-img\">\n\n\n<p>IT\u30b9\u30ad\u30eb\u9700\u8981\u306e\u9ad8\u307e\u308a\u3068\u3068\u3082\u306b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3082\u5897\u3048\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3069\u306e\u30b9\u30af\u30fc\u30eb\u306b\u901a\u3046\u3079\u304d\u304b\u8ff7\u3063\u3066\u3057\u307e\u3046\u4eba\u3082\u3044\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u3093\u306a\u65b9\u306b\u306f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\uff01\u3053\u308c\u307e\u3067\u591a\u304f\u306eIT\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u80b2\u6210\u30fb\u8f29\u51fa\u3057\u3066\u304d\u305f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3092\u958b\u8b1b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"bgBox\">\n<p><strong>\uff1c\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306e\u7279\u5fb4\uff1e<\/strong><br 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rel=\"noopener\">\u3053\u3061\u3089<\/a>\u304b\u3089\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"excerpt":{"rendered":"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3059\u308b\u69cb\u9020\u5316\u554f\u3044\u5408\u308f\u305b\u8a00\u8a9e\u300cSQL\u300d\u306e\u3046\u3061\u3001\u30c7\u30fc\u30bf\u64cd\u4f5c\u8a00\u8a9e\uff08DML\uff09\u306b\u306f\u3001\u4ee5\u4e0b\u306e4\u7a2e\u985e\u306e\u6587\u304c\u3042\u308a\u307e\u3059\u3002 INSERT\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308bSELECT\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306e\u683c\u7d0d\u30c7\u30fc\u30bf\u3092\u691c\u7d22\u3059\u308bUPDATE\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306e\u683c\u7d0d\u30c7\u30fc\u30bf\u3092\u66f4\u65b0\u3059\u308bDELETE\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30eb\u306e\u683c\u7d0d\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3059\u308b 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[&hellip;]","protected":false},"author":8,"featured_media":6638,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ss0.webp","fifu_image_alt":"\u3010SQL\u3011\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3059\u308bSELECT\u6587\u306e\u4f7f\u3044\u65b9\u3092\u57fa\u790e\u304b\u3089\u89e3\u8aac","footnotes":""},"categories":[1],"tags":[],"class_list":["post-6598","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/6598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/comments?post=6598"}],"version-history":[{"count":22,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/6598\/revisions"}],"predecessor-version":[{"id":8827,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/6598\/revisions\/8827"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/media\/6638"}],"wp:attachment":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/media?parent=6598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/categories?post=6598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/tags?post=6598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}