{"id":217809,"date":"2023-12-23T00:37:29","date_gmt":"2023-12-22T16:37:29","guid":{"rendered":"https:\/\/www.idc.net\/help\/217809\/"},"modified":"2023-12-23T00:37:29","modified_gmt":"2023-12-22T16:37:29","slug":"mysql%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c%ef%bc%9a%e4%bd%bf%e7%94%a8like%e6%93%8d%e4%bd%9c%e7%ac%a6%e5%9c%a8%e6%9f%90%e5%88%97%e4%b8%ad%e6%90%9c%e7%b4%a2%e6%8c%87%e5%ae%9a%e7%9a%84%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/217809\/","title":{"rendered":"MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f"},"content":{"rendered":"<p><title id=\"mysql%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c%ef%bc%9a%e4%bd%bf%e7%94%a8like%e6%93%8d%e4%bd%9c%e7%ac%a6%e5%9c%a8%e6%9f%90%e5%88%97%e4%b8%ad%e6%90%9c%e7%b4%a2%e6%8c%87%e5%ae%9a%e7%9a%84%e6%a8%a1%e5%bc%8f-cIeEqqIpHO\">MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f<\/title><\/p>\n<h1 id=\"mysql%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c%ef%bc%9a%e4%bd%bf%e7%94%a8like%e6%93%8d%e4%bd%9c%e7%ac%a6%e5%9c%a8%e6%9f%90%e5%88%97%e4%b8%ad%e6%90%9c%e7%b4%a2%e6%8c%87%e5%ae%9a%e7%9a%84%e6%a8%a1%e5%bc%8f-cIeEqqIpHO\">MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f<\/h1>\n<p>MySQL\u662f\u4e00\u79cd\u6d41\u884c\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5e7f\u6cdb\u7528\u4e8eWeb\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u6570\u636e\u5b58\u50a8\u3002\u5728MySQL\u4e2d\uff0cLIKE\u64cd\u4f5c\u7b26\u7528\u4e8e\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u8fdb\u884c\u6a21\u5f0f\u5339\u914d\u641c\u7d22\u3002<\/p>\n<h2 id=\"like%e6%93%8d%e4%bd%9c%e7%ac%a6-cIeEqqIpHO\">LIKE\u64cd\u4f5c\u7b26<\/h2>\n<p>LIKE\u64cd\u4f5c\u7b26\u7528\u4e8e\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f\u3002\u5b83\u53ef\u4ee5\u4e0e\u901a\u914d\u7b26\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u4fbf\u66f4\u7075\u6d3b\u5730\u5339\u914d\u5b57\u7b26\u4e32\u3002<\/p>\n<p>LIKE\u64cd\u4f5c\u7b26\u6709\u4e24\u4e2a\u901a\u914d\u7b26\u53ef\u7528\uff1a<\/p>\n<ul>\n<li>%\uff1a\u8868\u793a\u4efb\u610f\u5b57\u7b26\u5e8f\u5217\uff08\u5305\u62ec\u96f6\u4e2a\u5b57\u7b26\uff09\u3002<\/li>\n<li>_\uff1a\u8868\u793a\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username LIKE 'j%';\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u793a\u4f8b\u5c06\u8fd4\u56de\u6240\u6709\u7528\u6237\u540d\u4ee5\u5b57\u6bcd\u201cj\u201d\u5f00\u5934\u7684\u7528\u6237\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e9%80%9a%e9%85%8d%e7%ac%a6-cIeEqqIpHO\">\u4f7f\u7528\u901a\u914d\u7b26<\/h2>\n<p>\u901a\u914d\u7b26\u53ef\u4ee5\u4e0eLIKE\u64cd\u4f5c\u7b26\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u4fbf\u66f4\u7cbe\u786e\u5730\u5339\u914d\u5b57\u7b26\u4e32\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u901a\u914d\u7b26\u7528\u6cd5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528%\u901a\u914d\u7b26\u5339\u914d\u4efb\u610f\u5b57\u7b26\u5e8f\u5217\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT * FROM users WHERE username LIKE '%john%';\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u793a\u4f8b\u5c06\u8fd4\u56de\u6240\u6709\u7528\u6237\u540d\u4e2d\u5305\u542b\u201cjohn\u201d\u7684\u7528\u6237\u3002<\/p>\n<ul>\n<li>\u4f7f\u7528_\u901a\u914d\u7b26\u5339\u914d\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT * FROM users WHERE username LIKE 'j_n';\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u793a\u4f8b\u5c06\u8fd4\u56de\u6240\u6709\u7528\u6237\u540d\u4ee5\u5b57\u6bcd\u201cj\u201d\u5f00\u5934\uff0c\u540e\u9762\u8ddf\u7740\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\uff0c\u7136\u540e\u4ee5\u5b57\u6bcd\u201cn\u201d\u7ed3\u5c3e\u7684\u7528\u6237\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e8%bd%ac%e4%b9%89%e5%ad%97%e7%ac%a6-cIeEqqIpHO\">\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26<\/h2>\n<p>\u5982\u679c\u8981\u5728\u641c\u7d22\u6a21\u5f0f\u4e2d\u4f7f\u7528\u901a\u914d\u7b26\u672c\u8eab\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u201c\u201d\u8fdb\u884c\u8f6c\u4e49\u3002\u4f8b\u5982\uff0c\u8981\u641c\u7d22\u5305\u542b\u201c%\u201d\u5b57\u7b26\u7684\u7528\u6237\u540d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username LIKE '%%%';\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u793a\u4f8b\u5c06\u8fd4\u56de\u6240\u6709\u7528\u6237\u540d\u4e2d\u5305\u542b\u201c%\u201d\u5b57\u7b26\u7684\u7528\u6237\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-cIeEqqIpHO\">\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u4f7f\u7528MySQL\u7684LIKE\u64cd\u4f5c\u7b26\uff0c\u60a8\u53ef\u4ee5\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f\u3002\u901a\u8fc7\u7ed3\u5408\u901a\u914d\u7b26\u548c\u8f6c\u4e49\u5b57\u7b26\u7684\u4f7f\u7528\uff0c\u60a8\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u8fdb\u884c\u6a21\u5f0f\u5339\u914d\u641c\u7d22\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684MySQL\u6258\u7ba1\u89e3\u51b3\u65b9\u6848\uff0c\u540e\u6d6a\u4e91\u63d0\u4f9b\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u548c\u4e91\u670d\u52a1\u5668\u7b49\u4ea7\u54c1\u3002\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u7f51\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/idc.net\">\u540e\u6d6a\u4e91\u5b98\u7f51<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u5728\u67d0\u5217\u4e2d\u641c\u7d22\u6307\u5b9a\u7684\u6a21\u5f0f MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528LIKE\u64cd\u4f5c\u7b26\u5728\u67d0\u5217\u4e2d\u641c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197851],"tags":[],"class_list":["post-217809","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=217809"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217809\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=217809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=217809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=217809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}