{"id":200993,"date":"2025-05-06T14:26:48","date_gmt":"2025-05-06T06:26:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200993\/"},"modified":"2025-05-06T14:26:48","modified_gmt":"2025-05-06T06:26:48","slug":"mysql-%e6%a8%a1%e7%b3%8a%e6%9f%a5%e8%af%a2%e8%af%ad%e5%8f%a5%e4%b8%ad%ef%bc%8c%e5%8d%95%e5%bc%95%e5%8f%b7%e5%92%8c%e7%a9%ba%e6%a0%bc%e7%9a%84%e4%bd%bf%e7%94%a8%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200993\/","title":{"rendered":"MySQL \u6a21\u7cca\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u5355\u5f15\u53f7\u548c\u7a7a\u683c\u7684\u4f7f\u7528\u6709\u4ec0\u4e48\u533a\u522b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u6a21\u7cca\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u5355\u5f15\u53f7\u548c\u7a7a\u683c\u7684\u4f7f\u7528\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u5bf9\u6570\u636e\u5e93\u7f16\u7a0b\u611f\u5174\u8da3\u5417\uff1f\u662f\u5426\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff1f\u5982\u679c\u662f\uff0c\u90a3\u4e48\u672c\u6587\u300aMySQL \u6a21\u7cca\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u5355\u5f15\u53f7\u548c\u7a7a\u683c\u7684\u4f7f\u7528\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff0c\u672c\u7bc7\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\u3002\u5728\u4e4b\u540e\u7684\u6587\u7ae0\u4e2d\u4e5f\u4f1a\u591a\u591a\u5206\u4eab\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241124\/1732453608674324e89b2f7.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u7406\u89e3 mysql \u6a21\u7cca\u67e5\u8be2\u8bed\u53e5<\/strong><\/p>\n<p>\u5728 mysql \u4e2d\uff0c\u4f7f\u7528\u201clike\u201d\u64cd\u4f5c\u7b26\u8fdb\u884c\u6a21\u7cca\u67e5\u8be2\u65f6\uff0c\u901a\u5e38\u9700\u8981\u4f7f\u7528\u901a\u914d\u7b26\u201c%\u201d\u6765\u5339\u914d\u5b57\u7b26\u4e32\u4e2d\u7684\u4efb\u610f\u5b57\u7b26\u3002\u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u67e5\u8be2\u7ed3\u679c\u53ef\u80fd\u4e0e\u9884\u671f\u4e0d\u7b26\u3002<\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u4e2d\u7684\u4e24\u4e2a\u67e5\u8be2\u5c06\u4ea7\u751f\u4e0d\u540c\u7684\u7ed3\u679c\uff1a<\/p>\n<pre>select * from `user` where username like \"%\" 'name' \"%\" (\u53ef\u4ee5\u67e5\u51fa\u6570\u636e)\nselect * from `user` where username like \"%\" \"name\" \"%\" (\u67e5\u4e0d\u51fa\u6765\u6570\u636e)<\/pre>\n<p>\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u5b57\u7b26\u4e32\u62fc\u63a5\u65b9\u5f0f\u4e0d\u540c\u9020\u6210\u7684\u3002<\/p>\n<p>\u7b2c\u4e00\u4e2a\u67e5\u8be2\u4e2d\uff0c\u5355\u5f15\u53f7 &#8216; \u5c06 name \u4e0e\u767e\u5206\u53f7 % \u5206\u9694\u5f00\u6765\uff0c\u5bfc\u81f4\u5b57\u7b26\u4e32\u88ab\u89e3\u6790\u4e3a\uff1a<\/p>\n<pre>\"%'name'%\"<\/pre>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cmysql \u5c06\u5339\u914d username \u4e2d\u5305\u542b\u5b57\u7b26\u4e32 &#8220;&#8216;name'&#8221; \u7684\u8bb0\u5f55\u3002<\/p>\n<p>\u800c\u7b2c\u4e8c\u4e2a\u67e5\u8be2\u4e2d\uff0c\u7f3a\u5c11\u5355\u5f15\u53f7\uff0c\u56e0\u6b64\u5b57\u7b26\u4e32\u88ab\u89e3\u6790\u4e3a\uff1a<\/p>\n<pre>\"%name%\"<\/pre>\n<p>\u8fd9\u5c06\u5339\u914d username \u4e2d\u5305\u542b\u5b57\u7b26\u4e32 &#8220;name&#8221; \u7684\u8bb0\u5f55\u3002\u7531\u4e8e &#8220;name&#8221; \u4e0d\u5728\u7ed9\u5b9a\u7684\u8868\u4e2d\uff0c\u56e0\u6b64\u8be5\u67e5\u8be2\u5c06\u8fd4\u56de\u7a7a\u7ed3\u679c\u3002<\/p>\n<p>\u5b98\u65b9 mysql \u6587\u6863\u5efa\u8bae\u5728\u5b57\u7b26\u4e32\u4e4b\u95f4\u4f7f\u7528\u7a7a\u683c\u8fdb\u884c\u5206\u9694\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u5355\u5f15\u53f7\u3002\u8fd9\u5c06\u786e\u4fdd\u5b57\u7b26\u4e32\u6b63\u786e\u62fc\u63a5\u5e76\u83b7\u5f97\u9884\u671f\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e3a\u4e86\u907f\u514d\u6df7\u6dc6\uff0c\u6700\u597d\u9075\u5faa\u5b98\u65b9\u5efa\u8bae\uff0c\u4f7f\u7528\u7a7a\u683c\u6216\u5176\u4ed6\u5206\u9694\u7b26\u6765\u62fc\u63a5\u6a21\u7cca\u67e5\u8be2\u5b57\u7b26\u4e32\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aMySQL \u6a21\u7cca\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u5355\u5f15\u53f7\u548c\u7a7a\u683c\u7684\u4f7f\u7528\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u6a21\u7cca\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u5355\u5f15&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200993","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200993"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200993\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}