{"id":158835,"date":"2024-11-03T05:16:50","date_gmt":"2024-11-02T21:16:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/158835\/"},"modified":"2024-11-03T05:16:51","modified_gmt":"2024-11-02T21:16:51","slug":"%e9%97%9c%e6%96%bc%e7%b4%a2%e5%bc%95%e7%9a%84%e5%89%b5%e5%bb%ba%ef%bc%8c%e4%bf%ae%e6%94%b9%e5%92%8c%e5%88%aa%e9%99%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/158835\/","title":{"rendered":"\u95dc\u65bc\u7d22\u5f15\u7684\u5275\u5efa\uff0c\u4fee\u6539\u548c\u522a\u9664"},"content":{"rendered":"<h1 id=\"%e9%97%9c%e6%96%bc%e7%b4%a2%e5%bc%95%e7%9a%84%e5%89%b5%e5%bb%ba%ef%bc%8c%e4%bf%ae%e6%94%b9%e5%92%8c%e5%88%aa%e9%99%a4-jZPBXTdIub\">\u95dc\u65bc\u7d22\u5f15\u7684\u5275\u5efa\uff0c\u4fee\u6539\u548c\u522a\u9664<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u7d22\u5f15\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7528\u65bc\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u7d22\u5f15\u7684\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u57fa\u672c\u64cd\u4f5c\uff0c\u5c0d\u65bc\u512a\u5316\u6578\u64da\u6aa2\u7d22\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u4e9b\u64cd\u4f5c\u7684\u539f\u7406\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e5%89%b5%e5%bb%ba-jZPBXTdIub\">\u7d22\u5f15\u7684\u5275\u5efa<\/h2>\n<p>\u7d22\u5f15\u7684\u5275\u5efa\u662f\u70ba\u4e86\u52a0\u901f\u67e5\u8a62\u64cd\u4f5c\u3002\u7576\u6578\u64da\u8868\u4e2d\u7684\u6578\u64da\u91cf\u589e\u5927\u6642\uff0c\u67e5\u8a62\u7684\u901f\u5ea6\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002\u901a\u904e\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u7d22\u5f15\u901a\u5e38\u57fa\u65bc\u4e00\u500b\u6216\u591a\u500b\u5217\u9032\u884c\u5275\u5efa\uff0c\u4e26\u4e14\u53ef\u4ee5\u662f\u552f\u4e00\u7d22\u5f15\u6216\u975e\u552f\u4e00\u7d22\u5f15\u3002<\/p>\n<h3 id=\"%e5%89%b5%e5%bb%ba%e7%b4%a2%e5%bc%95%e7%9a%84%e8%aa%9e%e6%b3%95-jZPBXTdIub\">\u5275\u5efa\u7d22\u5f15\u7684\u8a9e\u6cd5<\/h3>\n<pre><code>CREATE INDEX index_name\nON table_name (column1, column2, ...);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba <code>employees<\/code> \u7684\u8868\uff0c\u82e5\u8981\u5728 <code>last_name<\/code> \u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE INDEX idx_lastname\nON employees (last_name);<\/code><\/pre>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bf%ae%e6%94%b9-jZPBXTdIub\">\u7d22\u5f15\u7684\u4fee\u6539<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u4fee\u6539\u5df2\u5b58\u5728\u7684\u7d22\u5f15\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\uff0c\u56e0\u70ba\u5927\u591a\u6578\u6578\u64da\u5eab\u7cfb\u7d71\u4e0d\u652f\u6301\u76f4\u63a5\u4fee\u6539\u7d22\u5f15\u7684\u7d50\u69cb\u3002\u4fee\u6539\u7d22\u5f15\u7684\u539f\u56e0\u53ef\u80fd\u5305\u62ec\uff1a\u6578\u64da\u8868\u7d50\u69cb\u7684\u8b8a\u66f4\u3001\u67e5\u8a62\u6027\u80fd\u7684\u512a\u5316\u9700\u6c42\u7b49\u3002<\/p>\n<h3 id=\"%e4%bf%ae%e6%94%b9%e7%b4%a2%e5%bc%95%e7%9a%84%e6%ad%a5%e9%a9%9f-jZPBXTdIub\">\u4fee\u6539\u7d22\u5f15\u7684\u6b65\u9a5f<\/h3>\n<ul>\n<li>\u9996\u5148\uff0c\u522a\u9664\u73fe\u6709\u7684\u7d22\u5f15\u3002<\/li>\n<li>\u7136\u5f8c\uff0c\u6839\u64da\u65b0\u7684\u9700\u6c42\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664\u4e4b\u524d\u5275\u5efa\u7684 <code>idx_lastname<\/code> \u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>DROP INDEX idx_lastname\nON employees;<\/code><\/pre>\n<p>\u63a5\u8457\uff0c\u53ef\u4ee5\u6839\u64da\u65b0\u7684\u9700\u6c42\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code>CREATE INDEX idx_lastname_firstname\nON employees (last_name, first_name);<\/code><\/pre>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e5%88%aa%e9%99%a4-jZPBXTdIub\">\u7d22\u5f15\u7684\u522a\u9664<\/h2>\n<p>\u522a\u9664\u7d22\u5f15\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u53e6\u4e00\u500b\u91cd\u8981\u64cd\u4f5c\u3002\u7576\u7d22\u5f15\u4e0d\u518d\u9700\u8981\u6642\uff0c\u522a\u9664\u5b83\u53ef\u4ee5\u91cb\u653e\u8cc7\u6e90\u4e26\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u904e\u591a\u7684\u7d22\u5f15\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u5728\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\u6642\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u70ba\u6bcf\u6b21\u6578\u64da\u8b8a\u66f4\u90fd\u9700\u8981\u66f4\u65b0\u76f8\u95dc\u7684\u7d22\u5f15\u3002<\/p>\n<h3 id=\"%e5%88%aa%e9%99%a4%e7%b4%a2%e5%bc%95%e7%9a%84%e8%aa%9e%e6%b3%95-jZPBXTdIub\">\u522a\u9664\u7d22\u5f15\u7684\u8a9e\u6cd5<\/h3>\n<pre><code>DROP INDEX index_name\nON table_name;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664 <code>idx_lastname_firstname<\/code> \u7d22\u5f15\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>DROP INDEX idx_lastname_firstname\nON employees;<\/code><\/pre>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-jZPBXTdIub\">\u7d22\u5f15\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u7d22\u5f15\u6642\uff0c\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u5e6b\u52a9\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff1a<\/p>\n<ul>\n<li>\u50c5\u5728\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\u3002<\/li>\n<li>\u907f\u514d\u5728\u7d93\u5e38\u8b8a\u66f4\u7684\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u91cd\u5efa\u7d22\u5f15\uff0c\u4ee5\u78ba\u4fdd\u5176\u6027\u80fd\u3002<\/li>\n<li>\u4f7f\u7528\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff08\u5982B\u6a39\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u7b49\uff09\u6839\u64da\u67e5\u8a62\u9700\u6c42\u9032\u884c\u9078\u64c7\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-jZPBXTdIub\">\u7e3d\u7d50<\/h2>\n<p>\u7d22\u5f15\u7684\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u90e8\u5206\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u512a\u5316\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u6aa2\u7d22\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u7d22\u5f15\u7684\u64cd\u4f5c\u539f\u7406\uff0c\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u66f4\u597d\u5730\u8a2d\u8a08\u548c\u7dad\u8b77\u6578\u64da\u5eab\u7cfb\u7d71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u7d22\u5f15\u7684\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u904e\u7a0b\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u548c\u67e5\u8a62\u6548\u7387\uff0c\u512a\u5316\u8cc7\u6599\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-158835","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158835","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=158835"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158835\/revisions"}],"predecessor-version":[{"id":158836,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/158835\/revisions\/158836"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=158835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=158835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=158835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}