![\"SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3068\u306f\uff1f\u8106\u5f31\u6027\u3084\u624b\u6cd5\u306a\u3069\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/04\/DAIKOXTECH\u69d8_\u30aa\u30a6\u30f3\u30c9\u30e1\u30c7\u30a3\u30a2\u30a2\u30a4\u30ad\u30e3\u30c3\u30c1-\u3010\u904b\u7528\u7248\u3011-20.png\")
\n![](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-06.png\")
<\/a><\/p>\r\n\n\u76ee\u6b21<\/p>
- 1<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3068\u306f\uff1f<\/a>
- 1.1<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u5f71\u97ff\u3084\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\u3068\u306e\u9055\u3044<\/a><\/li><\/ul><\/li>
- 2<\/span> SQL \u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u4ed5\u7d44\u307f<\/a><\/li>
- 3<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u5bfe\u7b56\u65b9\u6cd5<\/a>
- 3.1<\/span> \u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306e\u5229\u7528<\/a><\/li>
- 3.2<\/span> \u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u5b9f\u65bd<\/a><\/li>
- 3.3<\/span> \u5165\u529b\u5024\u691c\u8a3c\u306e\u5b9f\u65bd<\/a><\/li>
- 3.4<\/span> Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\uff08WAF\uff09\u306e\u5c0e\u5165<\/a><\/li>
- 3.5<\/span> Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6700\u65b0\u72b6\u614b\u306e\u7dad\u6301<\/a><\/li>
- 3.6<\/span> \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u76e3\u8996<\/a><\/li>
- 3.7<\/span> \u8106\u5f31\u6027\u8a3a\u65ad\u306e\u5b9f\u65bd<\/a><\/li>
- 3.8<\/span> \u30a8\u30e9\u30fc\u8868\u793a\u306e\u6291\u5236<\/a><\/li>
- 3.9<\/span> SQL\u6587\u306e\u4ee3\u66ff\u6848\u306e\u691c\u8a0e<\/a><\/li><\/ul><\/li>
- 4<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u306e\u4f8b<\/a>
- 4.1<\/span> \u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306e\u5229\u7528<\/a><\/li>
- 4.2<\/span> \u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/a><\/li><\/ul><\/li>
- 5<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\uff1a\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/a><\/li>
- 6<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u306e\u6ce8\u610f\u70b9<\/a>
- 6.1<\/span> \u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u6f0f\u308c<\/a><\/li>
- 6.2<\/span> \u4e0d\u9069\u5207\u306a\u5165\u529b\u5024\u691c\u8a3c<\/a><\/li>
- 6.3<\/span> \u9069\u5207\u306a\u5bfe\u7b56\u30ec\u30d9\u30eb\u306e\u9078\u5b9a<\/a><\/li><\/ul><\/li>
- 7<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3067Web\u30b5\u30a4\u30c8\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u3088\u3046<\/a><\/li><\/ul><\/div>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3068\u306f\uff1f<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/31798563_m.jpg\")
\nSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3068\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3066\u3001\u4e0d\u6b63\u306aSQL\u6587\u3092\u9001\u308a\u8fbc\u307f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4e0d\u6b63\u306b\u64cd\u4f5c\u3059\u308b\u653b\u6483\u624b\u6cd5<\/strong>\u3067\u3059\u3002SQL\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u7684\u306a\u8a00\u8a9e\u3067\u3001\u591a\u304f\u306eWeb\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u653b\u6483\u304c\u6210\u529f\u3059\u308b\u3068\u3001\u653b\u6483\u8005\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u60aa\u610f\u3042\u308b\u64cd\u4f5c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
- \n
- \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3055\u308c\u305f\u500b\u4eba\u60c5\u5831\u3084\u6a5f\u5bc6\u60c5\u5831\u306e\u4e0d\u6b63\u95b2\u89a7\u30fb\u7a83\u53d6<\/strong><\/li>\n
- \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u30c7\u30fc\u30bf\u306e\u6539\u3056\u3093\u3084\u6d88\u53bb<\/strong><\/li>\n
- \u8a8d\u8a3c\u30d7\u30ed\u30bb\u30b9\u306e\u56de\u907f\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u306a\u3057\u3067\u306e\u30ed\u30b0\u30a4\u30f3\uff09<\/strong><\/li>\n
- Web\u30b5\u30a4\u30c8\u306e\u6539\u3056\u3093<\/strong><\/li>\n
- \u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u6a29\u9650\u306e\u53d6\u5f97<\/strong><\/li>\n<\/ul>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u3001IPA\u306e\u300c\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u7b49\u306e\u8106\u5f31\u6027\u95a2\u9023\u60c5\u5831\u300d\u306e\u5831\u544a\u306b\u304a\u3044\u3066\u3082\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08XSS\uff09\u306b\u6b21\u3044\u30672\u756a\u76ee\u306b\u5c4a\u3051\u51fa\u304c\u591a\u3044\u653b\u6483\u624b\u6cd5\u3067\u3059\u3002SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u4f9d\u7136\u3068\u3057\u3066\u6df1\u523b\u306a\u8105\u5a01\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u8106\u5f31\u6027\u306b\u95a2\u3059\u308b\u88ab\u5bb3\u4e8b\u4f8b\u3068\u3057\u3066\u6700\u3082\u591a\u3044\u306e\u306f\u3001\u5168\u4f53\u306e57%\u3092\u5360\u3081\u308b\u300c\u672c\u7269\u30b5\u30a4\u30c8\u4e0a\u3078\u306e\u507d\u60c5\u5831\u306e\u8868\u793a\u300d\u3067\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u5f71\u97ff\u3084\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\u3068\u306e\u9055\u3044<\/span><\/h3>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306f\u4f01\u696d\u306b\u6df1\u523b\u306a\u5f71\u97ff\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002<\/p>\n
\u67d0\u30a2\u30a6\u30c8\u30ec\u30c3\u30c8\u904b\u55b6\u4f1a\u793e\u3067\u306f\u30012017\u5e74\u304b\u30892018\u5e74\u306b\u304b\u3051\u3066\u8907\u6570\u56de\u306eSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306b\u3088\u308a\u3001\u7d0427\u4e07\u4ef6\u306e\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u4f1a\u54e1\u60c5\u5831\u304c\u6f0f\u3048\u3044\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u307e\u305f\u30012020\u5e74\u306b\u306f\u4e8b\u52d9\u7528\u54c1\u3092\u6271\u3046EC\u30b5\u30a4\u30c8\u3067\u6700\u592712\u4e07\u4ef6\u306e\u9867\u5ba2\u60c5\u5831\uff08\u4e00\u90e8\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u60c5\u5831\u3092\u542b\u3080\uff09\u304c\u6d41\u51fa\u3059\u308b\u88ab\u5bb3\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u3055\u3089\u306b2022\u5e74\u3001\u56fd\u5185\u306e\u5927\u624b\u30ea\u30b5\u30fc\u30c1\u4f1a\u793e\u304cSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u3092\u53d7\u3051\u3001\u7d0410\u4e07\u4ef6\u306e\u500b\u4eba\u60c5\u5831\u304c\u6d41\u51fa\u3057\u3001\u30b5\u30fc\u30d3\u30b9\u3092\u6570\u65e5\u9593\u505c\u6b62\u3059\u308b\u4e8b\u614b\u306b\u9665\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306a\u88ab\u5bb3\u306f\u3001\u8ce0\u511f\u91d1\u306e\u652f\u6255\u3044\u3001\u4f01\u696d\u4fe1\u983c\u306e\u4f4e\u4e0b\u3001\u30b5\u30fc\u30d3\u30b9\u505c\u6b62\u306b\u3088\u308b\u58f2\u4e0a\u640d\u5931\u3001\u30b7\u30b9\u30c6\u30e0\u5fa9\u65e7\u30b3\u30b9\u30c8\u3001\u3055\u3089\u306b\u306f\u884c\u653f\u51e6\u5206\u306a\u3069\u306e\u4e8c\u6b21\u7684\u306a\u640d\u5bb3\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3068\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08XSS\uff09\u306f\u3069\u3061\u3089\u3082Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u3092\u7a81\u304f\u653b\u6483\u3067\u3059\u304c\u3001\u7570\u306a\u3063\u3066\u3044\u308b\u306e\u306f\u4ee5\u4e0b\u306e\u70b9\u3067\u3059\u3002<\/p>\n
- \n
- SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u3001XSS\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30d6\u30e9\u30a6\u30b6\u3092\u6a19\u7684\u3068\u3059\u308b<\/strong><\/li>\n
- SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u3001XSS\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u5b9f\u884c<\/strong><\/li>\n
- SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u60c5\u5831\u6f0f\u3048\u3044\u3084\u6539\u3056\u3093\u3001XSS\u306fCookie\u7a83\u53d6\u3084\u30bb\u30c3\u30b7\u30e7\u30f3\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306a\u3069\u304c\u4e3b\u306a\u88ab\u5bb3\u5185\u5bb9<\/strong><\/li>\n<\/ul>\n
\u4e21\u8005\u3068\u3082Web\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u8105\u304b\u3059\u6df1\u523b\u306a\u8106\u5f31\u6027\u3067\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u306b\u9069\u3057\u305f\u5bfe\u7b56\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
SQL \u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u4ed5\u7d44\u307f<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/32098959_m.jpg\")
\nSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u306e\u304b\u3001\u305d\u306e\u57fa\u672c\u7684\u306a\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n
\u901a\u5e38\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u9023\u643a\u3059\u308b\u969b\u306e\u51e6\u7406\u306e\u6d41\u308c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
- \n
- \u30e6\u30fc\u30b6\u30fc\u304cWeb\u30d5\u30a9\u30fc\u30e0\u306a\u3069\u304b\u3089\u60c5\u5831\uff08ID\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u306a\u3069\uff09\u3092\u5165\u529b<\/strong><\/li>\n
- Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u305d\u306e\u5165\u529b\u5024\u3092\u57fa\u306bSQL\u6587\u3092\u751f\u6210<\/strong><\/li>\n
- \u751f\u6210\u3055\u308c\u305fSQL\u6587\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u9001\u4fe1\u3055\u308c\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/li>\n
- \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u7d50\u679c\u304c\u8fd4\u3055\u308c\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u901a\u3058\u3066\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u3055\u308c\u308b<\/strong><\/li>\n<\/ol>\n
\u4f8b\uff1aSELECT * FROM users WHERE id = ‘taro’;<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u5165\u529b\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u7279\u6b8a\u306a\u6587\u5b57\u3084\u69cb\u6587\u3092\u542b\u3080\u60aa\u610f\u3042\u308b\u5165\u529b\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n
- \n
- \u653b\u6483\u8005\u304c\u8106\u5f31\u6027\u306e\u3042\u308bWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u898b\u3064\u3051\u308b<\/strong><\/li>\n
- \u5165\u529b\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u4e0d\u6b63\u306aSQL\u69cb\u6587\uff08\u4f8b\uff1a’ OR ‘1’=’1\uff09\u3092\u5165\u529b<\/strong><\/li>\n
- Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3053\u306e\u5165\u529b\u3092\u305d\u306e\u307e\u307eSQL\u6587\u306b\u7d44\u307f\u8fbc\u3080<\/strong><\/li>\n
- \u7d50\u679c\u3068\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306aSQL\u6587\u304c\u751f\u6210\u3055\u308c\u308b\u3002<\/strong><\/li>\n<\/ol>\n
\u4f8b\uff1aSELECT * FROM users WHERE id = ‘taro’ OR ‘1’=’1′;<\/p>\n
\u3053\u306e\u4f8b\u3067\u306f\u3001OR ‘1’=’1’\u3068\u3044\u3046\u6761\u4ef6\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002’1’=’1’\u306f\u5e38\u306b\u771f\u3068\u306a\u308b\u305f\u3081\u3001\u3053\u306e\u6761\u4ef6\u306f\u300cid\u304c’taro’\u306b\u4e00\u81f4\u3059\u308b\u304b\u3001\u307e\u305f\u306f1=1\u304c\u771f\u3067\u3042\u308b\uff08\u5e38\u306b\u771f\uff09\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001WHERE\u53e5\u306e\u6761\u4ef6\u306f\u5e38\u306b\u771f\u3068\u306a\u308a\u3001users\u30c6\u30fc\u30d6\u30eb\u306e\u5168\u3066\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u8fd4\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3054\u304f\u5358\u7d14\u306a\u4f8b\u3067\u3059\u304c\u3001\u5b9f\u969b\u306e\u653b\u6483\u3067\u306f\u3055\u3089\u306b\u8907\u96d1\u306a\u69cb\u6587\u304c\u4f7f\u7528\u3055\u308c\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u60c5\u5831\u306e\u7a83\u53d6\u3001\u6539\u3056\u3093\u3001\u524a\u9664\u306a\u3069\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u306f\u3001OS\u30b3\u30de\u30f3\u30c9\u306e\u5b9f\u884c\u3084\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u5bfe\u7b56\u65b9\u6cd5<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/31967716_m.jpg\")
\nSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u5bfe\u7b56\u3092\u7dcf\u5408\u7684\u306b\u5b9f\u65bd\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306e\u5229\u7528<\/span><\/h3>\n
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3068\u306f\u3001SQL\u6587\u306e\u4e2d\u3067\u5024\u304c\u5909\u52d5\u3059\u308b\u90e8\u5206\u3092\u3001\u4e8b\u524d\u306b\u5b9a\u7fa9\u3057\u305f\u8a18\u53f7\u3067\u7f6e\u304d\u63db\u3048\u308b\u4ed5\u7d44\u307f<\/strong>\u3067\u3059\u3002<\/p>\n
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\uff08\u30d1\u30e9\u30e1\u30fc\u30bf\u5316\u30af\u30a8\u30ea\uff09\u306f\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3068\u3057\u3066\u6700\u3082\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u306e\u4e00\u3064\u3067\u3059\u3002\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001SQL\u6587\u306e\u69cb\u9020\u3068\u30c7\u30fc\u30bf\uff08\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306a\u3069\uff09\u3092\u660e\u78ba\u306b\u5206\u96e2\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3067\u306f\u3001SQL\u6587\u306e\u4e2d\u3067\u5909\u52d5\u3059\u308b\u5024\u306e\u90e8\u5206\u3092\u4e00\u6642\u7684\u306b\u7591\u554f\u7b26(?)\u3084\u30b3\u30ed\u30f3(:name)\u306a\u3069\u306e\u8a18\u53f7\u3067\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u5b9f\u884c\u6642\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u304c\u3053\u308c\u3089\u306e\u8a18\u53f7\u3092\u5b9f\u969b\u306e\u5024\u3067\u7f6e\u63db\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u65b9\u6cd5\u3067\u306f\u3001\u5165\u529b\u30c7\u30fc\u30bf\u304cSQL\u30b3\u30fc\u30c9\u3068\u3057\u3066\u89e3\u91c8\u3055\u308c\u308b\u3053\u3068\u306f\u306a\u304f\u3001\u7d14\u7c8b\u306a\u30c7\u30fc\u30bf\u3068\u3057\u3066\u51e6\u7406\u3055\u308c\u308b\u305f\u3081\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3092\u9632\u6b62\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u4f8b\uff1a<\/p>\n
\/\/ \u5b89\u5168\u306aSQL\uff08\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u4f7f\u7528\uff09<\/p>\n
$sql = “SELECT * FROM users WHERE mail = :mail AND pass = :pass”;<\/p>\n
$stmt = $pdo->prepare($sql);<\/p>\n
$stmt->bindParam(‘:mail’, $mail);<\/p>\n
$stmt->bindParam(‘:pass’, $pass);<\/p>\n
$stmt->execute();<\/p>\n
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306b\u306f\u4e3b\u306b\u300c\u9759\u7684\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u300d\u3068\u300c\u52d5\u7684\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u300d\u306e2\u7a2e\u985e\u3067\u3059\u3002\u9759\u7684\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5074\u3067\u5909\u63db\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u3088\u308a\u5b89\u5168\u6027\u304c\u9ad8\u3044\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001\u52d5\u7684\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u3067\u5909\u63db\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u8106\u5f31\u6027\u306b\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u5b9f\u65bd<\/span><\/h3>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3068\u306f\u3001SQL\u306b\u304a\u3044\u3066\u7279\u5225\u306a\u610f\u5473\u3092\u6301\u3064\u6587\u5b57\uff08\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u300c’\u300d\u3001\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u300c”\u300d\u3001\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u300c\\\u300d\u306a\u3069\uff09\u3092\u7121\u52b9\u5316\u3059\u308b\u51e6\u7406<\/strong>\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4e0d\u6b63\u306aSQL\u6587\u304c\u5b9f\u884c\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001MySQL\u3067\u306e\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
- \n
- \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘) \u2192 ‘<\/li>\n
- \u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8(“) \u2192 “<\/li>\n
- \u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5() \u2192 \\<\/li>\n
- NULL\u30d0\u30a4\u30c8 \u2192 \\0<\/li>\n<\/ul>\n
\u5404\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306f\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3092\u884c\u3046\u305f\u3081\u306e\u95a2\u6570\u3084\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001PHP\u306emysqli_real_escape_string()\u3084PDO::quote()\u306a\u3069\u3067\u3059\u3002<\/p>\n
\u305f\u3060\u3057\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3060\u3051\u3067\u306fSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3092\u5b8c\u5168\u306b\u9632\u3052\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u53ef\u80fd\u306a\u9650\u308a\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u5165\u529b\u5024\u691c\u8a3c\u306e\u5b9f\u65bd<\/span><\/h3>\n
\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u306e\u5165\u529b\u306b\u5bfe\u3057\u3066\u3001\u9069\u5207\u306a\u691c\u8a3c\u3092\u884c\u3046\u306e\u3082\u91cd\u8981\u306a\u5bfe\u7b56<\/strong>\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u6570\u5024\u306e\u307f\u3092\u53d7\u3051\u4ed8\u3051\u308b\u9805\u76ee\u3067\u306f\u6587\u5b57\u5217\u3092\u62d2\u5426\u3057\u305f\u308a\u3001\u7279\u6b8a\u306a\u8a18\u53f7\u3092\u4f7f\u7528\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n
\u5177\u4f53\u7684\u306a\u65b9\u6cd5\u3068\u3057\u3066\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
- \n
- \u5165\u529b\u53ef\u80fd\u306a\u6587\u5b57\u306e\u7a2e\u985e\u3092\u5236\u9650\u3059\u308b\uff08\u82f1\u6570\u5b57\u306e\u307f\u3001\u6570\u5b57\u306e\u307f\u306a\u3069\uff09<\/strong><\/li>\n
- \u5165\u529b\u306e\u9577\u3055\u306b\u5236\u9650\u3092\u8a2d\u3051\u308b<\/strong><\/li>\n
- \u60f3\u5b9a\u5916\u306e\u5f62\u5f0f\u306e\u5165\u529b\u3092\u62d2\u5426\u3059\u308b\uff08\u4f8b\uff1a\u96fb\u8a71\u756a\u53f7\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u304c\u3042\u308b\u5834\u5408\uff09<\/strong><\/li>\n
- \u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3057\u3066\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3092\u884c\u3046<\/strong><\/li>\n<\/ul>\n
\u305f\u3060\u3057\u3001\u5165\u529b\u5024\u691c\u8a3c\u3060\u3051\u3067\u306fSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3092\u5b8c\u5168\u306b\u9632\u3052\u306a\u3044\u305f\u3081\u3001\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3084\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n
Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\uff08WAF\uff09\u306e\u5c0e\u5165<\/span><\/h3>\n
Web Application Firewall\uff08WAF\uff09\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3084\u653b\u6483\u3092\u691c\u77e5\u30fb\u906e\u65ad\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u30c4\u30fc\u30eb<\/strong>\u3067\u3059\u3002WAF\u306fSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3060\u3051\u3067\u306a\u304f\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08XSS\uff09\u3084\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff08CSRF\uff09\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u653b\u6483\u304b\u3089Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n
WAF\u306f\u901a\u4fe1\u306e\u5185\u5bb9\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306b\u4f7f\u308f\u308c\u308b\u4e0d\u6b63\u306aSQL\u6587\u30d1\u30bf\u30fc\u30f3\u3092\u691c\u77e5\u3059\u308b\u3068\u3001\u305d\u306e\u901a\u4fe1\u3092\u906e\u65ad\u3057\u307e\u3059\u3002WAF\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\uff08OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u7b2c7\u5c64\uff09\u3067\u52d5\u4f5c\u3059\u308b\u305f\u3081\u3001\u4e00\u822c\u7684\u306a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3088\u308a\u3082\u9ad8\u5ea6\u306a\u4fdd\u8b77\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n
WAF\u306b\u306f\u4e3b\u306b\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u578b\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u578b\u3001\u30af\u30e9\u30a6\u30c9\u578b\u306e3\u7a2e\u985e\u304c\u3042\u308a\u3001\u4f01\u696d\u306e\u30cb\u30fc\u30ba\u3084\u4e88\u7b97\u306b\u5fdc\u3058\u3066\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n
Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6700\u65b0\u72b6\u614b\u306e\u7dad\u6301<\/span><\/h3>\n
Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u305d\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3053\u3068\u3082\u91cd\u8981\u306a\u5bfe\u7b56<\/strong>\u3067\u3059\u3002\u958b\u767a\u5143\u304b\u3089\u63d0\u4f9b\u3055\u308c\u308b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027\u306e\u4fee\u6b63\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u591a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n
\u7279\u306b\u3001WordPress\u3084Joomla\u306a\u3069\u306eCMS\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u672c\u4f53\u3060\u3051\u3067\u306a\u304f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u3082\u542b\u3081\u3066\u5b9a\u671f\u7684\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u307e\u305f\u3001JPCERT\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3\u30bb\u30f3\u30bf\u30fc\u3068IPA\uff08\u72ec\u7acb\u884c\u653f\u6cd5\u4eba\u60c5\u5831\u51e6\u7406\u63a8\u9032\u6a5f\u69cb\uff09\u304c\u5171\u540c\u3067\u904b\u55b6\u3059\u308bJVN iPedia\uff08\u8106\u5f31\u6027\u5bfe\u7b56\u60c5\u5831\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff09\u306a\u3069\u3092\u5b9a\u671f\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3001\u6700\u65b0\u306e\u8106\u5f31\u6027\u60c5\u5831\u3092\u5165\u624b\u3059\u308b\u306e\u3082\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u76e3\u8996<\/span><\/h3>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u3092\u5b9a\u671f\u7684\u306b\u76e3\u8996\u3059\u308b\u3068\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306e\u5146\u5019\u3092\u65e9\u671f\u306b\u767a\u898b\u3067\u304d\u307e\u3059\u3002\u30ed\u30b0\u306b\u306fSQL\u6587\u306e\u5b9f\u884c\u5c65\u6b74\u304c\u8a18\u9332\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u4e0d\u5be9\u306aSQL\u30af\u30a8\u30ea\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u30ed\u30b0\u76e3\u8996\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
- \n
- \u901a\u5e38\u3068\u306f\u7570\u306a\u308b\u30d1\u30bf\u30fc\u30f3\u306eSQL\u30af\u30a8\u30ea<\/strong><\/li>\n
- \u77ed\u6642\u9593\u306b\u5927\u91cf\u306e\u30af\u30a8\u30ea\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b<\/strong><\/li>\n
- \u6a29\u9650\u6607\u683c\u3092\u8a66\u307f\u308b\u3088\u3046\u306a\u30af\u30a8\u30ea<\/strong><\/li>\n
- \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3088\u3046\u3068\u3059\u308b\u30af\u30a8\u30ea<\/strong><\/li>\n<\/ul>\n
\u81ea\u52d5\u30ed\u30b0\u76e3\u8996\u30c4\u30fc\u30eb\u3092\u5c0e\u5165\u3059\u308b\u3068\u300124\u6642\u9593\u4f53\u5236\u3067\u306e\u76e3\u8996\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u653b\u6483\u306e\u65e9\u671f\u767a\u898b\u30fb\u5bfe\u5fdc\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u8106\u5f31\u6027\u8a3a\u65ad\u306e\u5b9f\u65bd<\/span><\/h3>\n
\u5b9a\u671f\u7684\u306b\u81ea\u793e\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5bfe\u3057\u3066\u8106\u5f31\u6027\u8a3a\u65ad\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002\u8106\u5f31\u6027\u8a3a\u65ad\u3067\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5c02\u9580\u5bb6\u304c\u64ec\u4f3c\u7684\u306a\u653b\u6483\u3092\u884c\u3044\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u3092\u6d17\u3044\u51fa\u3057\u307e\u3059\u3002<\/p>\n
\u8106\u5f31\u6027\u8a3a\u65ad\u306b\u306f\u4e3b\u306b\u4ee5\u4e0b\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n
- \n
- \u9759\u7684\u89e3\u6790\u30fc\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u89e3\u6790\u3057\u3066\u6f5c\u5728\u7684\u306a\u8106\u5f31\u6027\u3092\u767a\u898b\u3059\u308b<\/strong><\/li>\n
- \u52d5\u7684\u89e3\u6790\u30fc\u5b9f\u969b\u306bWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u52d5\u4f5c\u3055\u305b\u306a\u304c\u3089\u8106\u5f31\u6027\u3092\u767a\u898b\u3059\u308b<\/strong><\/li>\n
- \u30da\u30cd\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u30c6\u30b9\u30c8\u30fc\u5c02\u9580\u5bb6\u304c\u5b9f\u969b\u306e\u653b\u6483\u8005\u306e\u3088\u3046\u306b\u632f\u308b\u821e\u3044\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u8106\u5f31\u6027\u3092\u63a2\u308b<\/strong><\/li>\n<\/ul>\n
\u3053\u308c\u3089\u306e\u8a3a\u65ad\u3092\u5b9a\u671f\u7684\u306b\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3067\u3001\u65b0\u305f\u306b\u767a\u898b\u3055\u308c\u305f\u8106\u5f31\u6027\u306b\u5bfe\u3057\u3066\u8fc5\u901f\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30a8\u30e9\u30fc\u8868\u793a\u306e\u6291\u5236<\/span><\/h3>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306e\u521d\u671f\u6bb5\u968e\u3067\u306f\u3001\u653b\u6483\u8005\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/strong>\u3002\u8a73\u7d30\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u3088\u3063\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u7a2e\u985e\u3084\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u306a\u3069\u306e\u60c5\u5831\u304c\u6f0f\u3048\u3044\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u305d\u306e\u305f\u3081\u3001\u672c\u756a\u74b0\u5883\u3067\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30e9\u30fc\u306e\u8a73\u7d30\u3092\u76f4\u63a5\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u305b\u305a\u3001\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30a8\u30e9\u30fc\u306e\u8a73\u7d30\u306f\u30ed\u30b0\u306b\u8a18\u9332\u3057\u3001\u958b\u767a\u8005\u3084\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u306e\u307f\u304c\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
SQL\u6587\u306e\u4ee3\u66ff\u6848\u306e\u691c\u8a0e<\/span><\/h3>\n
\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001SQL\u3092\u76f4\u63a5\u4f7f\u7528\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001OR\u30de\u30c3\u30d1\u30fc\u306a\u3069\u306e\u9ad8\u6c34\u6e96\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9\u624b\u6cd5\u3092\u4f7f\u7528\u3059\u308b<\/strong>\u3053\u3068\u3082\u691c\u8a0e\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002OR\u30de\u30c3\u30d1\u30fc\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u6a4b\u6e21\u3057\u3092\u3059\u308b\u6280\u8853\u3067\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u30ea\u30b9\u30af\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n
\u4ee3\u8868\u7684\u306aOR\u30de\u30c3\u30d1\u30fc\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
- \n
- Java: Hibernate<\/li>\n
- PHP: Doctrine<\/li>\n
- Python: SQLAlchemy<\/li>\n
- Ruby: ActiveRecord<\/li>\n
- .NET: Entity Framework<\/li>\n<\/ul>\n
\u3053\u308c\u3089\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306f\u5185\u90e8\u3067SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u958b\u767a\u8005\u304c\u76f4\u63a5SQL\u3092\u6271\u3046\u6a5f\u4f1a\u304c\u6e1b\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3082\u4f4e\u6e1b\u3057\u307e\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u306e\u4f8b<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/31936118_m.jpg\")
\n\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u4f8b\u3092\u901a\u3058\u3066\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306e\u5229\u7528<\/span><\/h3>\n
\u7570\u306a\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306e\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u5b9f\u88c5\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
PHP\uff08PDO\uff09\uff1a<\/p>\n
\/\/ \u5371\u967a\u306a\u30b3\u30fc\u30c9\uff08SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u3042\u308a\uff09<\/p>\n
$sql = “SELECT * FROM users WHERE mail='” . $mail . “‘ AND pass='” . $pass . “‘;”;<\/p>\n
$result = $pdo->query($sql);<\/p>\n
\/\/ \u5b89\u5168\u306a\u30b3\u30fc\u30c9\uff08\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u4f7f\u7528\uff09<\/p>\n
$sql = “SELECT * FROM users WHERE mail = :mail AND pass = :pass”;<\/p>\n
$stmt = $pdo->prepare($sql);<\/p>\n
$stmt->bindParam(‘:mail’, $mail);<\/p>\n
$stmt->bindParam(‘:pass’, $pass);<\/p>\n
$stmt->execute();<\/p>\n
$result = $stmt->fetchAll();<\/p>\n
Java\uff08JDBC\uff09\uff1a<\/p>\n
\/\/ \u5371\u967a\u306a\u30b3\u30fc\u30c9<\/p>\n
String sql = “SELECT * FROM users WHERE username = ‘” + username + “‘ AND password = ‘” + password + “‘”;<\/p>\n
Statement stmt = connection.createStatement();<\/p>\n
ResultSet rs = stmt.executeQuery(sql);<\/p>\n
\/\/ \u5b89\u5168\u306a\u30b3\u30fc\u30c9\uff08\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u4f7f\u7528\uff09<\/p>\n
String sql = “SELECT * FROM users WHERE username = ? AND password = ?”;<\/p>\n
PreparedStatement pstmt = connection.prepareStatement(sql);<\/p>\n
pstmt.setString(1, username);<\/p>\n
pstmt.setString(2, password);<\/p>\n
ResultSet rs = pstmt.executeQuery();<\/p>\n
Python\uff08SQLite3\uff09\uff1a<\/p>\n
# \u5371\u967a\u306a\u30b3\u30fc\u30c9<\/p>\n
cursor.execute(“SELECT * FROM users WHERE username = ‘” + username + “‘ AND password = ‘” + password + “‘”)<\/p>\n
# \u5b89\u5168\u306a\u30b3\u30fc\u30c9\uff08\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u4f7f\u7528\uff09<\/p>\n
cursor.execute(“SELECT * FROM users WHERE username = ? AND password = ?”, (username, password))<\/p>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/span><\/h3>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\u3082\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
PHP\uff08mysqli\uff09\uff1a<\/p>\n
\/\/ mysqli_real_escape_string\u3092\u4f7f\u7528\u3057\u305f\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/p>\n
$mail = mysqli_real_escape_string($conn, $mail);<\/p>\n
$pass = mysqli_real_escape_string($conn, $pass);<\/p>\n
$sql = “SELECT * FROM users WHERE mail=’$mail’ AND pass=’$pass'”;<\/p>\n
$result = mysqli_query($conn, $sql);<\/p>\n
Java\uff1a<\/p>\n
\/\/ Apache Commons\u306eStringEscapeUtils\u3092\u4f7f\u7528<\/p>\n
import org.apache.commons.lang3.StringEscapeUtils;<\/p>\n
String safeUsername = StringEscapeUtils.escapeSql(username);<\/p>\n
String sql = “SELECT * FROM users WHERE username = ‘” + safeUsername + “‘”;<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\uff1a\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/32091696_m.jpg\")
\n\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3084\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u4e00\u822c\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u30a8\u30b9\u30b1\u30fc\u30d7\u3059\u3079\u304d\u4e3b\u306a\u6587\u5b57\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
\n\n
\n \n \u6587\u5b57<\/p>\n<\/td>\n
\n \u5185\u5bb9<\/p>\n<\/td>\n<\/tr>\n
\n \n \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘)<\/p>\n<\/td>\n
\n \u6587\u5b57\u5217\u306e\u533a\u5207\u308a\u306b\u4f7f\u7528\u3055\u308c\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3067\u6700\u3082\u60aa\u7528\u3055\u308c\u308b<\/p>\n<\/td>\n<\/tr>\n
\n \n \u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8(“)<\/p>\n<\/td>\n
\n \u4e00\u90e8\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u6587\u5b57\u5217\u533a\u5207\u308a\u306b\u4f7f\u7528\u3055\u308c\u308b<\/p>\n<\/td>\n<\/tr>\n
\n \n \u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5(\\)<\/p>\n<\/td>\n
\n \u30a8\u30b9\u30b1\u30fc\u30d7\u6587\u5b57\u81ea\u4f53<\/p>\n<\/td>\n<\/tr>\n
\n \n \u30bb\u30df\u30b3\u30ed\u30f3(;)<\/p>\n<\/td>\n
\n SQL\u6587\u306e\u533a\u5207\u308a\u306b\u4f7f\u7528\u3055\u308c\u308b<\/p>\n<\/td>\n<\/tr>\n
\n \n \u30cf\u30a4\u30d5\u30f3(-)\u3068\u9023\u7d9a\u3059\u308b\u30cf\u30a4\u30d5\u30f3(–)<\/p>\n<\/td>\n
\n \u30b3\u30e1\u30f3\u30c8\u958b\u59cb\u3092\u610f\u5473\u3059\u308b<\/p>\n<\/td>\n<\/tr>\n
\n \n \u30b9\u30e9\u30c3\u30b7\u30e5\u3068\u30a2\u30b9\u30bf\u30ea\u30b9\u30af(\/*)<\/p>\n<\/td>\n
\n \u8907\u6570\u884c\u30b3\u30e1\u30f3\u30c8\u306e\u958b\u59cb\u3092\u610f\u5473\u3059\u308b<\/p>\n<\/td>\n<\/tr>\n
\n \n NULL\u30d0\u30a4\u30c8<\/p>\n<\/td>\n
\n \u7279\u5b9a\u306e\u8a00\u8a9e\u3067\u306f\u6587\u5b57\u5217\u7d42\u7aef\u3068\u3057\u3066\u6271\u308f\u308c\u308b<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u88fd\u54c1\u306b\u3088\u3063\u3066\u30a8\u30b9\u30b1\u30fc\u30d7\u65b9\u6cd5\u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
MySQL\uff1a<\/p>\n
- \n
- \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘) \u2192 \\’<\/li>\n
- \u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8(“) \u2192 \\”<\/li>\n
- \u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5(\\) \u2192 \\\\<\/li>\n
- NULL\u30d0\u30a4\u30c8 \u2192 \\0<\/li>\n
- \u6539\u884c(\\n) \u2192 \\\\n<\/li>\n
- \u30ad\u30e3\u30ea\u30c3\u30b8\u30ea\u30bf\u30fc\u30f3(\\r) \u2192 \\\\r<\/li>\n
- \u30b3\u30f3\u30c8\u30ed\u30fc\u30ebZ(\\Z) \u2192 \\\\Z<\/li>\n<\/ul>\n
PostgreSQL\uff1a<\/p>\n
- \n
- \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘) \u2192 ”\uff08\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u30922\u3064\uff09<\/li>\n<\/ul>\n
Oracle\uff1a<\/p>\n
- \n
- \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘) \u2192 ”\uff08\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u30922\u3064\uff09<\/li>\n<\/ul>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3092\u884c\u3046\u969b\u306e\u6ce8\u610f\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
- \n
- \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u56fa\u6709\u306e\u30a8\u30b9\u30b1\u30fc\u30d7\u30eb\u30fc\u30eb\u3092\u6b63\u78ba\u306b\u9069\u7528\u3059\u308b<\/li>\n
- \u6587\u5b57\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u9055\u3044\u306b\u6ce8\u610f\u3059\u308b<\/li>\n
- \u53ef\u80fd\u306a\u9650\u308a\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u3068\u4f75\u7528\u3059\u308b<\/li>\n
- \u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3092\u5fd8\u308c\u305a\u306b\u5168\u3066\u306e\u5916\u90e8\u5165\u529b\u306b\u9069\u7528\u3059\u308b<\/li>\n<\/ol>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306f\u78ba\u5b9f\u306b\u5b9f\u65bd\u3057\u306a\u3044\u3068\u3001\u4e00\u90e8\u306eSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306b\u5bfe\u3057\u3066\u8106\u5f31\u6027\u304c\u6b8b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u306e\u6ce8\u610f\u70b9<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/32186393_m.jpg\")
\nSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3092\u5b9f\u65bd\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u6f0f\u308c<\/span><\/h3>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3068\u3057\u3066\u6700\u3082\u591a\u3044\u5931\u6557\u306f\u3001\u4e00\u90e8\u306e\u5165\u529b\u30c7\u30fc\u30bf\u306b\u5bfe\u3057\u3066\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3092\u5fd8\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u3067\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u3067\u3059\u3002<\/p>\n
- \n
- \u691c\u7d22\u6761\u4ef6\u306e\u4e00\u90e8\uff08WHERE\u53e5\u306eLIKE\u6f14\u7b97\u5b50\u306a\u3069\uff09<\/strong><\/li>\n
- ORDER BY\u53e5\u306a\u3069\u3067\u306e\u30bd\u30fc\u30c8\u6761\u4ef6<\/strong><\/li>\n
- \u30c6\u30fc\u30d6\u30eb\u540d\u3084\u30ab\u30e9\u30e0\u540d\u3092\u52d5\u7684\u306b\u5909\u66f4\u3059\u308b\u5834\u5408<\/strong><\/li>\n
- \u30d0\u30c3\u30c1\u51e6\u7406\u306a\u3069\u3067\u306eSQL\u751f\u6210<\/strong><\/li>\n<\/ul>\n
\u3059\u3079\u3066\u306e\u5916\u90e8\u5165\u529b\u5024\u3092\u4f8b\u5916\u306a\u304f\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u307e\u305f\u3001\u53ef\u80fd\u306a\u9650\u308a\u30c6\u30fc\u30d6\u30eb\u540d\u3084\u30ab\u30e9\u30e0\u540d\u3092\u52d5\u7684\u306b\u5909\u66f4\u3059\u308b\u3088\u3046\u306a\u51e6\u7406\u306f\u907f\u3051\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u4e0d\u9069\u5207\u306a\u5165\u529b\u5024\u691c\u8a3c<\/span><\/h3>\n
\u5165\u529b\u5024\u691c\u8a3c\uff08\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\uff09\u3092\u5b9f\u65bd\u3059\u308b\u969b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n
- \n
- \u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u65b9\u5f0f\uff08\u8a31\u53ef\u3055\u308c\u305f\u6587\u5b57\u306e\u307f\u53d7\u3051\u5165\u308c\u308b\uff09<\/strong><\/li>\n
- \u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3067\u306e\u5fc5\u305a\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u65bd<\/strong><\/li>\n
- \u30c7\u30fc\u30bf\u578b\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u691c\u8a3c\uff08\u6570\u5024\u306f\u6574\u6570\u578b\u3068\u3057\u3066\u51e6\u7406\u3059\u308b\u306a\u3069\uff09<\/strong><\/li>\n<\/ul>\n
\u9069\u5207\u306a\u5bfe\u7b56\u30ec\u30d9\u30eb\u306e\u9078\u5b9a<\/span><\/h3>\n
\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u904e\u5270\u306a\u5b9f\u88c5\u306f\u958b\u767a\u52b9\u7387\u3084\u904b\u7528\u30b3\u30b9\u30c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u5bfe\u5fdc\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n
- \n
- \u30ea\u30b9\u30af\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u5bfe\u7b56\u30ec\u30d9\u30eb\u306e\u9078\u5b9a<\/strong><\/li>\n
- \u65e2\u5b58\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6d3b\u7528<\/strong><\/li>\n
- \u958b\u767a\u30c1\u30fc\u30e0\u5168\u4f53\u3067\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u77e5\u8b58\u306e\u5171\u6709<\/strong><\/li>\n<\/ul>\n
\u307e\u305f\u3001\u8907\u6570\u306e\u5bfe\u7b56\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u300c\u591a\u5c64\u9632\u5fa1\u300d\u306e\u8003\u3048\u65b9\u304c\u91cd\u8981\u3067\u3059\u3002\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u306e\u4f7f\u7528\u3092\u57fa\u672c\u3068\u3057\u3064\u3064\u3001WAF\u306e\u5c0e\u5165\u3084\u5b9a\u671f\u7684\u306a\u8106\u5f31\u6027\u8a3a\u65ad\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f53\u5236\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3067Web\u30b5\u30a4\u30c8\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u3088\u3046<\/span><\/h2>\n
![\"\"](\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/04\/3244504_m-1.jpg\")
\nSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u53e4\u304f\u304b\u3089\u77e5\u3089\u308c\u3066\u3044\u308b\u653b\u6483\u624b\u6cd5\u3067\u3059\u304c\u3001\u4eca\u65e5\u3067\u3082Web\u30b5\u30a4\u30c8\u306e\u8106\u5f31\u6027\u3092\u72d9\u3063\u305f\u653b\u6483\u306f\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u500b\u4eba\u60c5\u5831\u3084\u6a5f\u5bc6\u60c5\u5831\u306e\u6f0f\u3048\u3044\u3001Web\u30b5\u30a4\u30c8\u306e\u6539\u3056\u3093\u306a\u3069\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306b\u3088\u308b\u88ab\u5bb3\u306f\u4f01\u696d\u306e\u4fe1\u983c\u3092\u5927\u304d\u304f\u640d\u306a\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u306f\u4e00\u5ea6\u5b9f\u65bd\u3057\u3066\u7d42\u308f\u308a\u3067\u306f\u306a\u304f\u3001\u7d99\u7d9a\u7684\u306b\u898b\u76f4\u3057\u3001\u6539\u5584\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981<\/strong>\u3067\u3059\u3002\u65b0\u305f\u306a\u8106\u5f31\u6027\u3084\u653b\u6483\u624b\u6cd5\u304c\u65e5\u3005\u767a\u898b\u3055\u308c\u308b\u305f\u3081\u3001\u5e38\u306b\u6700\u65b0\u306e\u60c5\u5831\u3092\u30ad\u30e3\u30c3\u30c1\u30a2\u30c3\u30d7\u3057\u3001\u9069\u5207\u306a\u5bfe\u5fdc\u3092\u53d6\u3089\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n
Web\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u4f01\u696d\u306e\u4fe1\u983c\u6027\u306b\u76f4\u7d50\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5bfe\u7b56\u3092\u5fb9\u5e95\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u5927\u5207\u306a\u60c5\u5831\u3092\u5b88\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u5c02\u9580\u7684\u306a\u77e5\u8b58\u3084\u4eba\u6750\u304c\u4e0d\u8db3\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5c02\u9580\u4f01\u696d\u306b\u3088\u308b\u8a3a\u65ad\u30b5\u30fc\u30d3\u30b9\u3084\u30b3\u30f3\u30b5\u30eb\u30c6\u30a3\u30f3\u30b0\u306e\u5229\u7528\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n
\u5f53\u793e\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30cb\u30fc\u30ba\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u5e45\u5e83\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u53d6\u308a\u6271\u3063\u3066\u304a\u308a\u3001\u5c02\u9580\u7684\u306a\u77e5\u8b58\u3092\u6709\u3059\u308b\u30b9\u30bf\u30c3\u30d5\u304c\u304a\u5ba2\u69d8\u306e\u8ab2\u984c\u306b\u5408\u308f\u305b\u305f\u6700\u9069\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u3054\u63d0\u6848\u3057\u307e\u3059\u3002\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f01\u696d\u306eWeb\u30b5\u30fc\u30d3\u30b9\u3092\u8105\u304b\u3059\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u4e2d\u3067\u3082\u7279\u306b\u6ce8\u610f\u3059\u3079\u304d\u624b\u6cd5\u306e\u4e00\u3064\u304c\u300cSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u300d\u3067\u3059\u3002SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3068\u306fWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4e0d\u6b63\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6ce8\u5165\uff08\u30a4\u30f3\u30b8\u30a7…<\/p>\n","protected":false},"author":17,"featured_media":17108,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"blog_industries":[],"blog_topic":[],"class_list":{"0":"post-14098","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-security","8":"article"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts\/14098","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/comments?post=14098"}],"version-history":[{"count":6,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts\/14098\/revisions"}],"predecessor-version":[{"id":17109,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts\/14098\/revisions\/17109"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/media\/17108"}],"wp:attachment":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/media?parent=14098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/categories?post=14098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/tags?post=14098"},{"taxonomy":"blog_industries","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/blog_industries?post=14098"},{"taxonomy":"blog_topic","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/blog_topic?post=14098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- \u65e2\u5b58\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6d3b\u7528<\/strong><\/li>\n
- \u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u3067\u306e\u5fc5\u305a\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u65bd<\/strong><\/li>\n
- ORDER BY\u53e5\u306a\u3069\u3067\u306e\u30bd\u30fc\u30c8\u6761\u4ef6<\/strong><\/li>\n
- \u691c\u7d22\u6761\u4ef6\u306e\u4e00\u90e8\uff08WHERE\u53e5\u306eLIKE\u6f14\u7b97\u5b50\u306a\u3069\uff09<\/strong><\/li>\n
- \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘) \u2192 ”\uff08\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u30922\u3064\uff09<\/li>\n<\/ul>\n
- \u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8(‘) \u2192 ”\uff08\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u30922\u3064\uff09<\/li>\n<\/ul>\n
- \u52d5\u7684\u89e3\u6790\u30fc\u5b9f\u969b\u306bWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u52d5\u4f5c\u3055\u305b\u306a\u304c\u3089\u8106\u5f31\u6027\u3092\u767a\u898b\u3059\u308b<\/strong><\/li>\n
- \u77ed\u6642\u9593\u306b\u5927\u91cf\u306e\u30af\u30a8\u30ea\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b<\/strong><\/li>\n
- \u5165\u529b\u306e\u9577\u3055\u306b\u5236\u9650\u3092\u8a2d\u3051\u308b<\/strong><\/li>\n
- \u5165\u529b\u53ef\u80fd\u306a\u6587\u5b57\u306e\u7a2e\u985e\u3092\u5236\u9650\u3059\u308b\uff08\u82f1\u6570\u5b57\u306e\u307f\u3001\u6570\u5b57\u306e\u307f\u306a\u3069\uff09<\/strong><\/li>\n
- \u5165\u529b\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u4e0d\u6b63\u306aSQL\u69cb\u6587\uff08\u4f8b\uff1a’ OR ‘1’=’1\uff09\u3092\u5165\u529b<\/strong><\/li>\n
- Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u305d\u306e\u5165\u529b\u5024\u3092\u57fa\u306bSQL\u6587\u3092\u751f\u6210<\/strong><\/li>\n
- SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u3001XSS\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u5b9f\u884c<\/strong><\/li>\n
- \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u30c7\u30fc\u30bf\u306e\u6539\u3056\u3093\u3084\u6d88\u53bb<\/strong><\/li>\n
- 6.2<\/span> \u4e0d\u9069\u5207\u306a\u5165\u529b\u5024\u691c\u8a3c<\/a><\/li>
- 4.2<\/span> \u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/a><\/li><\/ul><\/li>
- 3.2<\/span> \u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u5b9f\u65bd<\/a><\/li>
- 2<\/span> SQL \u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u4ed5\u7d44\u307f<\/a><\/li>
- 1.1<\/span> SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u5f71\u97ff\u3084\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\u3068\u306e\u9055\u3044<\/a><\/li><\/ul><\/li>