{"id":199748,"date":"2025-05-06T10:04:58","date_gmt":"2025-05-06T02:04:58","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199748\/"},"modified":"2025-05-06T10:04:58","modified_gmt":"2025-05-06T02:04:58","slug":"mysql%e6%9f%a5%e8%af%a2%e5%ae%9e%e4%be%8b%ef%bc%9a%e5%ad%a6%e4%bc%9a%e4%bd%bf%e7%94%a8%e4%bb%a5%e5%bc%80%e5%a4%b4%e6%9d%a1%e4%bb%b6%e8%bf%9b%e8%a1%8c%e6%9f%a5%e8%af%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199748\/","title":{"rendered":"MySQL\u67e5\u8be2\u5b9e\u4f8b\uff1a\u5b66\u4f1a\u4f7f\u7528\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u8fdb\u884c\u67e5\u8be2"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL\u67e5\u8be2\u5b9e\u4f8b\uff1a\u5b66\u4f1a\u4f7f\u7528\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u8fdb\u884c\u67e5\u8be2<\/h1>\n<p>\u600e\u4e48\u5165\u95e8\u6570\u636e\u5e93\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aMySQL\u67e5\u8be2\u5b9e\u4f8b\uff1a\u5b66\u4f1a\u4f7f\u7528\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u8fdb\u884c\u67e5\u8be2\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n<p>MySQL\u67e5\u8be2\u5b9e\u4f8b\uff1a\u638c\u63e1\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u67e5\u8be2\u7684\u5e94\u7528<\/p>\n<p>\u5728MySQL\u6570\u636e\u5e93\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u6839\u636e\u5b57\u6bb5\u503c\u7684\u5f00\u5934\u5b57\u7b26\u6765\u8fdb\u884c\u67e5\u8be2\u7684\u60c5\u51b5\u3002\u8fd9\u65f6\u5019\uff0c\u5c31\u9700\u8981\u7528\u5230\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u67e5\u8be2\uff0c\u5373\u4f7f\u7528LIKE\u8bed\u53e5\u7ed3\u5408\u901a\u914d\u7b26\u8fdb\u884c\u6a21\u7cca\u67e5\u8be2\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u67e5\u8be2\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5982\u4f55\u4f7f\u7528LIKE\u8bed\u53e5\u914d\u5408\u901a\u914d\u7b26\u8fdb\u884c\u6a21\u7cca\u67e5\u8be2\u3002\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u5217\u901a\u914d\u7b26\u6765\u8fdb\u884c\u6a21\u7cca\u67e5\u8be2\uff1a<\/p>\n<ul>\n<li>%\uff1a\u8868\u793a\u4efb\u610f\u5b57\u7b26\u51fa\u73b0\u4efb\u610f\u6b21\u6570<\/li>\n<li>_\uff1a\u8868\u793a\u4e00\u4e2a\u4efb\u610f\u5b57\u7b26<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u8981\u67e5\u8be2\u4ee5\u7279\u5b9a\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\u5f00\u5934\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n<pre>SELECT * FROM table_name WHERE column_name LIKE 'specific%'<\/pre>\n<p>\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c<code>table_name<\/code>\u662f\u8981\u67e5\u8be2\u7684\u8868\u540d\uff0c<code>column_name<\/code>\u662f\u8981\u8fdb\u884c\u6a21\u7cca\u67e5\u8be2\u7684\u5b57\u6bb5\u540d\uff0c<code>specific<\/code>\u662f\u8981\u67e5\u8be2\u7684\u5f00\u5934\u5b57\u7b26\u6216\u5b57\u7b26\u4e32\uff0c%\u8868\u793a\u5728specific\u540e\u9762\u53ef\u4ee5\u6709\u4efb\u610f\u5b57\u7b26\u51fa\u73b0\u4efb\u610f\u6b21\u6570\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u7ed3\u5408\u5177\u4f53\u7684\u793a\u4f8b\u6765\u6f14\u793a\u5982\u4f55\u5b9e\u73b0\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u67e5\u8be2\u3002\u5047\u8bbe\u6709\u4e00\u4e2a\u540d\u4e3a<code>products<\/code>\u7684\u8868\uff0c\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n<pre>CREATE TABLE products (\n    id INT PRIMARY KEY,\n    name VARCHAR(50)\n);<\/pre>\n<p>\u73b0\u5728\u6211\u4eec\u8981\u67e5\u8be2\u6240\u6709\u4ee5\u5b57\u6bcd\u201cA\u201d\u5f00\u5934\u7684\u4ea7\u54c1\u540d\u79f0\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n<pre>SELECT * FROM products WHERE name LIKE 'A%'<\/pre>\n<p>\u8fd0\u884c\u4e0a\u9762\u7684\u67e5\u8be2\u8bed\u53e5\u540e\uff0c\u5c06\u8fd4\u56de\u6240\u6709\u4ea7\u54c1\u540d\u79f0\u4ee5\u5b57\u6bcd\u201cA\u201d\u5f00\u5934\u7684\u8bb0\u5f55\u3002<\/p>\n<p>\u9664\u4e86\u5b57\u6bcd\u4ee5\u5916\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u67e5\u8be2\u5176\u4ed6\u7c7b\u578b\u7684\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u8981\u67e5\u8be2\u6240\u6709\u4ee5\u6570\u5b57\u201c1\u201d\u5f00\u5934\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n<pre>SELECT * FROM table_name WHERE column_name LIKE '1%'<\/pre>\n<p>\u901a\u8fc7\u4e0d\u540c\u7684\u901a\u914d\u7b26\u7ec4\u5408\uff0c\u6211\u4eec\u53ef\u4ee5\u7075\u6d3b\u5730\u8fdb\u884c\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u67e5\u8be2\uff0c\u5feb\u901f\u5b9a\u4f4d\u9700\u8981\u7684\u6570\u636e\u3002<\/p>\n<p>\u603b\u7ed3\u8d77\u6765\uff0c\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u67e5\u8be2\u662fMySQL\u4e2d\u5e38\u7528\u7684\u67e5\u8be2\u6280\u5de7\u4e4b\u4e00\u3002\u901a\u8fc7\u638c\u63e1LIKE\u8bed\u53e5\u7ed3\u5408\u901a\u914d\u7b26\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5e76\u7ed3\u5408\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u9ad8\u6548\u5730\u8fdb\u884c\u6570\u636e\u67e5\u8be2\uff0c\u63d0\u9ad8\u6570\u636e\u67e5\u8be2\u7684\u51c6\u786e\u6027\u548c\u6548\u7387\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u5728MySQL\u67e5\u8be2\u4e2d\u7684\u5e94\u7528\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aMySQL\u67e5\u8be2\u5b9e\u4f8b\uff1a\u5b66\u4f1a\u4f7f\u7528\u201c\u4ee5\u201d\u5f00\u5934\u6761\u4ef6\u8fdb\u884c\u67e5\u8be2\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8eSQL,\u67e5\u8be2\u6761\u4ef6,\u5f00\u5934\u7684\u8d44\u6599\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\u67e5\u8be2\u5b9e\u4f8b\uff1a\u5b66\u4f1a\u4f7f\u7528\u201c\u4ee5&#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-199748","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199748","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=199748"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199748\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}