{"id":32292,"date":"2023-05-30T10:37:21","date_gmt":"2023-05-30T02:37:21","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=32292"},"modified":"2023-07-31T00:16:24","modified_gmt":"2023-07-30T16:16:24","slug":"sql%e9%87%8c%e5%90%8c%e6%a0%b7%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%ad%97%e6%ae%b5%ef%bc%8c%e5%86%85%e5%ae%b9%e6%98%af%e5%85%a8%e4%b8%ad%e6%96%87%e6%88%96%e8%80%85%e5%85%a8%e5%ad%97%e6%af%8d%e6%88%96","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/32292.html","title":{"rendered":"SQL\u91cc\u540c\u6837\u5b57\u7b26\u4e32\u5b57\u6bb5\uff0c\u5185\u5bb9\u662f\u5168\u4e2d\u6587\u6216\u8005\u5168\u5b57\u6bcd\u6216\u8005\u5168\u6570\u5b57\uff0c\u67e5\u8be2\u901f\u5ea6\u4f1a\u6709\u533a\u522b\u5417"},"content":{"rendered":"
\n

\u57fa\u672c\u6ca1\u533a\u522b\uff0c\u8ba1\u7b97\u673a\u5e95\u5c42\u5bf9\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\u5206\u89e3\u4e0d\u4e00\u6837\uff0c\u4f46\u6548\u7387\u4e0a\u6765\u8bf4\u4e0d\u4f1a\u6709\u592a\u5927\u7684\u5dee\u522b\u3002\u5e76\u4e14\uff0c\u5982\u679c\u662f\u4e3a\u4e86\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff0c\u5efa\u8bae\u5229\u7528\u7d22\u5f15\u6765\u5b9e\u73b0\u3002\u800c\u5728\u7d22\u5f15\u65b9\u9762\uff0c\u4e2d\u6587\u548c\u6570\u5b57\u5728\u67e5\u8be2\u901f\u5ea6\u4e0a\u7684\u533a\u522b\u4f1a\u66f4\u52a0\u5c0f\uff0c\u57fa\u672c\u53ef\u4ee5\u5ffd\u7565\u3002<\/p>\n<\/blockquote>\n

\n
\"\"<\/figure>\n<\/div>\n

\u4e00\u3001SQL\u91cc\u5b57\u7b26\u4e32\u5b57\u6bb5\u5185\u5bb9\u662f\u5168\u4e2d\u6587\u6216\u8005\u5168\u5b57\u6bcd\u6216\u8005\u5168\u6570\u5b57\u67e5\u8be2\u901f\u5ea6\u7684\u533a\u522b<\/strong><\/h2>\n

\u57fa\u672c\u6ca1\u533a\u522b\uff0c\u8ba1\u7b97\u673a\u5e95\u5c42\u5bf9\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\u5206\u89e3\u4e0d\u4e00\u6837\uff0c\u4f46\u6548\u7387\u4e0a\u6765\u8bf4\u4e0d\u4f1a\u6709\u592a\u5927\u7684\u5dee\u522b\u3002<\/p>\n

\u5e76\u4e14\uff0c\u5982\u679c\u662f\u4e3a\u4e86\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff0c\u5efa\u8bae\u5229\u7528\u7d22\u5f15\u6765\u5b9e\u73b0\u3002\u800c\u5728\u7d22\u5f15\u65b9\u9762\uff0c\u4e2d\u6587\u548c\u6570\u5b57\u5728\u67e5\u8be2\u901f\u5ea6\u4e0a\u7684\u533a\u522b\u4f1a\u66f4\u52a0\u5c0f\uff0c\u57fa\u672c\u53ef\u4ee5\u5ffd\u7565\u3002<\/p>\n

\u4e0b\u9762\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u7d22\u5f15\u7684\u6982\u5ff5\uff1a<\/p>\n

    \n
  • \u5728MySQL\u7684\u6027\u80fd\u4f18\u5316\u4e2d\uff0c\u7d22\u5f15\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u5757\uff0c\u597d\u7684\u7d22\u5f15\u903b\u8f91\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8MySQL\u7684\u6548\u7387\u3002\u6b63\u5982google\u3001\u767e\u5ea6\u4e00\u6837\uff0c\u7d22\u5f15\u4e5f\u662f\u671f\u6570\u636e\u67e5\u8be2\u4e2d\u91cd\u8981\u7684\u4e00\u4e2a\u56e0\u7d20\u3002<\/li>\n<\/ul>\n

    \u5b9e\u9645\u4e0a\uff0c\u7d22\u5f15\u4e5f\u662f\u4e00\u5f20\u8868\uff0c\u8be5\u8868\u4fdd\u5b58\u4e86\u4e3b\u952e\u4e0e\u7d22\u5f15\u5b57\u6bb5\uff0c\u5e76\u6307\u5411\u5b9e\u4f53\u8868\u7684\u8bb0\u5f55\u3002<\/p>\n

    \u4f7f\u7528\u7d22\u5f15\u56fa\u7136\u6709\u597d\u5904\uff0c\u4f46\u8fc7\u591a\u7684\u4f7f\u7528\u7d22\u5f15\u5c06\u4f1a\u9020\u6210\u6ee5\u7528\u3002\u56e0\u6b64\u7d22\u5f15\u4e5f\u4f1a\u6709\u5b83\u7684\u7f3a\u70b9\uff1a<\/p>\n

      \n
    • \u867d\u7136\u7d22\u5f15\u5927\u5927\u63d0\u9ad8\u4e86\u67e5\u8be2\u901f\u5ea6\uff0c\u540c\u65f6\u5374\u4f1a\u964d\u4f4e\u66f4\u65b0\u8868\u7684\u901f\u5ea6\uff0c\u5982\u5bf9\u8868\u8fdb\u884cINSERT\u3001UPDATE\u548cDELETE\u3002\u56e0\u4e3a\u66f4\u65b0\u8868\u65f6\uff0cMySQL\u4e0d\u4ec5\u8981\u4fdd\u5b58\u6570\u636e\uff0c\u8fd8\u8981\u4fdd\u5b58\u4e00\u4e0b\u7d22\u5f15\u6587\u4ef6\u3002<\/li>\n
    • \u5efa\u7acb\u7d22\u5f15\u4f1a\u5360\u7528\u78c1\u76d8\u7a7a\u95f4\u7684\u7d22\u5f15\u6587\u4ef6\u3002<\/li>\n<\/ul>\n

      \u5ef6\u4f38\u9605\u8bfb\uff1a<\/strong><\/p>\n

      \u4e8c\u3001sql\u8bed\u53e5\u5224\u65ad\u662f\u5426\u4e3a\u6570\u5b57\u3001\u5b57\u6bcd\u3001\u4e2d\u6587<\/strong><\/strong><\/h2>\n

      select ascii(\u5b57\u6bb5)
      \u6570\u5b57\uff1a48-57
      \u5b57\u6bcd\uff1a65-123
      \u6c49\u5b57\uff1a123+<\/p>\n

      \u5982\uff0c\u8981\u5220\u9664\u67d0\u4e2a\u5168\u4e3a\u6570\u5b57\u7684\u5b57\u6bb5<\/p>\n

      DELETE FROM\u00a0table\u00a0\u00a0WHERE ascii(name) between 48 and 57\u00a0\u00a0<\/p>\n

      \u5305\u542b\u4e2d\u6587\u5b57\u7b26\uff1a<\/p>\n

      select * from \u8868\u540d where \u5217\u540d like \u2018%[y-z]%\u2019<\/p>\n

      \u5305\u542b\u82f1\u6587\u5b57\u7b26\uff1a<\/p>\n

      select * from \u8868\u540d where \u5217\u540d like \u2018%[a-z]%\u2019\u00a0<\/p>\n

      \u5305\u542b\u7eaf\u6570\u5b57\uff1a<\/p>\n

      select * from \u8868\u540d where \u5217\u540d like \u2018%[0-9]%\u2019<\/p>\n","protected":false},"excerpt":{"rendered":"\u57fa\u672c\u6ca1\u533a\u522b\uff0c\u8ba1\u7b97\u673a\u5e95\u5c42\u5bf9\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\u5206\u89e3\u4e0d\u4e00\u6837\uff0c\u4f46\u6548\u7387\u4e0a\u6765\u8bf4\u4e0d\u4f1a\u6709\u592a\u5927\u7684\u5dee\u522b\u3002\u5e76\u4e14\uff0c\u5982\u679c\u662f\u4e3a\u4e86\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff0c […]","protected":false},"author":1,"featured_media":32293,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/32292"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=32292"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/32292\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/32293"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=32292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=32292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=32292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}