{"id":272,"date":"2025-07-21T16:33:07","date_gmt":"2025-07-21T08:33:07","guid":{"rendered":"https:\/\/lib.kimsor.top\/?p=272"},"modified":"2025-09-15T12:14:08","modified_gmt":"2025-09-15T04:14:08","slug":"mysql%e8%87%aa%e5%ae%9a%e4%b9%89%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/lib.kimsor.top\/?p=272","title":{"rendered":"Mysql\u4f7f\u7528orderby\u81ea\u5b9a\u4e49\u6392\u5e8f"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><strong>1\u3001\u4f7f\u7528case when<\/strong><\/h3>\n\n\n\n<p>\u4f8b\uff1a\u8fd9\u91cc\u6211\u60f3\u6839\u636ename\u4e3a\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e\u6765\u6392\u5e8f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>order by\n  case name\n  when '\u5c0f\u660e' then 1\n  when '\u5c0f\u7ea2' then 2\n  when '\u5c0f\u534e' then 3\n  end<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2\u3001\u4f7f\u7528field\u51fd\u6570<\/strong><\/h3>\n\n\n\n<p>\u4f8b\uff1a\u8fd9\u91cc\u6211\u60f3\u6839\u636ename\u4e3a\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e\u6765\u6392\u5e8f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>order by\n  field(name,'\u5c0f\u660e','\u5c0f\u7ea2','\u5c0f\u534e')<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3\u3001\u51fd\u6570locate\u5b9e\u73b0\u81ea\u5b9a\u4e49\u6392\u5e8f<\/strong><\/h3>\n\n\n\n<p>\u4f7f\u7528locate\u5176\u5b9e\u5c31\u662f\u6839\u636ename\u5728\u5b57\u7b26\u4e32&#8221;\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e&#8221;\u7684\u4e0b\u6807\u6765\u8fdb\u884c\u6392\u5e8f<\/p>\n\n\n\n<p>\u4f8b\uff1a\u8fd9\u91cc\u6211\u60f3\u6839\u636ename\u4e3a\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e\u6765\u6392\u5e8f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>order by locate(name,'\u5c0f\u660e,\u5c0f\u7ea2,\u5c0f\u534e')<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4\u3001\u51fd\u6570lnstr\u5b9e\u73b0\u81ea\u5b9a\u4e49\u6392\u5e8f<\/strong><\/h3>\n\n\n\n<p>\u4f7f\u7528instr\u5176\u5b9e\u5c31\u662f\u6839\u636einstr\u5728\u5b57\u7b26\u4e32&#8221;\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e&#8221;\u7684\u4e0b\u6807\u6765\u8fdb\u884c\u6392\u5e8f<\/p>\n\n\n\n<p>\u4f8b\uff1a\u8fd9\u91cc\u6211\u60f3\u6839\u636ename\u4e3a\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e\u6765\u6392\u5e8f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>order by instr('\u5c0f\u660e,\u5c0f\u7ea2,\u5c0f\u534e',name)<\/code><\/pre>\n\n\n\n<p>\u5176\u5b9e\u539f\u7406\u548clocate\u4e00\u6837<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5\u3001\u6839\u636e\u5b57\u5178\u6765\u8fdb\u884c\u6392\u5e8f<\/strong><\/h3>\n\n\n\n<p>\u4f7f\u7528\u5b57\u5178\u8868\u8bb0\u5f55\u5b57\u6bb5\u7684\u987a\u5e8f\uff0c\u7136\u540e\u8fde\u8868\u83b7\u53d6\u5b57\u6bb5\u7684\u987a\u5e8f\u540e\u5bf9\u8be5\u5b57\u6bb5\u6392\u5e8f<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u4f7f\u7528case when \u4f8b\uff1a\u8fd9\u91cc\u6211\u60f3\u6839\u636ename\u4e3a\u5c0f\u660e\uff0c\u5c0f\u7ea2\uff0c\u5c0f\u534e\u6765\u6392\u5e8f 2\u3001\u4f7f\u7528field\u51fd\u6570 \u4f8b\uff1a\u8fd9\u91cc [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,3],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","hentry","category-mysql","category-database"],"_links":{"self":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=272"}],"version-history":[{"count":2,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":364,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=\/wp\/v2\/posts\/272\/revisions\/364"}],"wp:attachment":[{"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lib.kimsor.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}