{"id":79556,"date":"2024-10-16T13:16:14","date_gmt":"2024-10-16T05:16:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79556\/"},"modified":"2024-10-16T13:16:14","modified_gmt":"2024-10-16T05:16:14","slug":"mysql%e6%8c%87%e4%bb%a4-replace%ef%bc%88%e6%9b%bf%e6%8f%9b%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79556\/","title":{"rendered":"MySQL\u6307\u4ee4: REPLACE()\uff08\u66ff\u63db\u5b57\u7b26\u4e32\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-replace%ef%bc%88%e6%9b%bf%e6%8f%9b%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%89-FQcmVfxvMC\">MySQL\u6307\u4ee4: REPLACE()\uff08\u66ff\u63db\u5b57\u7b26\u4e32\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5b57\u7b26\u4e32\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5b57\u7b26\u4e32\u8655\u7406\u51fd\u6578\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fREPLACE()\u51fd\u6578\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0eREPLACE()\u51fd\u6578\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"replace%e5%87%bd%e6%95%b8%e6%a6%82%e8%bf%b0-FQcmVfxvMC\">REPLACE()\u51fd\u6578\u6982\u8ff0<\/h2>\n<p>REPLACE()\u51fd\u6578\u7684\u4e3b\u8981\u529f\u80fd\u662f\u7528\u65bc\u66ff\u63db\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e9b\u90e8\u5206\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>REPLACE(str, from_str, to_str)<\/code><\/pre>\n<ul>\n<li><strong>str<\/strong>: \u8981\u9032\u884c\u66ff\u63db\u7684\u539f\u59cb\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>from_str<\/strong>: \u9700\u8981\u88ab\u66ff\u63db\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>to_str<\/strong>: \u7528\u65bc\u66ff\u63db\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<p>\u7576REPLACE()\u51fd\u6578\u88ab\u8abf\u7528\u6642\uff0c\u5b83\u6703\u5728\u539f\u59cb\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u6240\u6709\u51fa\u73fe\u7684from_str\uff0c\u4e26\u5c07\u5176\u66ff\u63db\u70bato_str\u3002\u5982\u679cfrom_str\u5728\u539f\u59cb\u5b57\u7b26\u4e32\u4e2d\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de\u539f\u59cb\u5b57\u7b26\u4e32\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-FQcmVfxvMC\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528REPLACE()\u51fd\u6578\uff1a<\/p>\n<pre><code>SELECT REPLACE('Hello World', 'World', 'MySQL') AS Result;<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u67e5\u8a62\u5f8c\uff0c\u7d50\u679c\u5c07\u6703\u662f\uff1a<\/p>\n<pre><code>Result\n---------------\nHello MySQL\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c&#8217;World&#8217;\u88ab\u6210\u529f\u66ff\u63db\u70ba&#8217;MySQL&#8217;\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e6%ac%a1%e6%9b%bf%e6%8f%9b-FQcmVfxvMC\">\u591a\u6b21\u66ff\u63db<\/h2>\n<p>REPLACE()\u51fd\u6578\u6703\u66ff\u63db\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u51fa\u73fe\u7684from_str\u3002\u5982\u679c\u9700\u8981\u9032\u884c\u591a\u6b21\u66ff\u63db\uff0c\u53ef\u4ee5\u5c07REPLACE()\u51fd\u6578\u5d4c\u5957\u4f7f\u7528\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT REPLACE(REPLACE('Hello World, World!', 'World', 'MySQL'), 'Hello', 'Hi') AS Result;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\uff1a<\/p>\n<pre><code>Result\n-------------------\nHi MySQL, MySQL!\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-FQcmVfxvMC\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528REPLACE()\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>REPLACE()\u51fd\u6578\u662f\u5340\u5206\u5927\u5c0f\u5beb\u7684\uff0c\u56e0\u6b64&#8217;world&#8217;\u548c&#8217;World&#8217;\u6703\u88ab\u8996\u70ba\u4e0d\u540c\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<li>\u5982\u679cfrom_str\u70ba\u7a7a\u5b57\u7b26\u4e32\uff0cREPLACE()\u51fd\u6578\u5c07\u8fd4\u56de\u539f\u59cb\u5b57\u7b26\u4e32\u3002<\/li>\n<li>REPLACE()\u51fd\u6578\u4e0d\u6703\u6539\u8b8a\u539f\u59cb\u5b57\u7b26\u4e32\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u500b\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-FQcmVfxvMC\">\u61c9\u7528\u5834\u666f<\/h2>\n<p>REPLACE()\u51fd\u6578\u5728\u591a\u7a2e\u60c5\u6cc1\u4e0b\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u6e05\u7406\uff1a\u5728\u5c0e\u5165\u6578\u64da\u6642\uff0c\u53ef\u80fd\u9700\u8981\u66ff\u63db\u4e0d\u6b63\u78ba\u7684\u503c\u3002<\/li>\n<li>\u683c\u5f0f\u5316\u8f38\u51fa\uff1a\u5728\u751f\u6210\u5831\u544a\u6216\u986f\u793a\u6578\u64da\u6642\uff0c\u53ef\u80fd\u9700\u8981\u66ff\u63db\u7279\u5b9a\u7684\u6a19\u8a18\u6216\u7b26\u865f\u3002<\/li>\n<li>\u7528\u6236\u8f38\u5165\u8655\u7406\uff1a\u5728\u8655\u7406\u7528\u6236\u8f38\u5165\u6642\uff0c\u53ef\u80fd\u9700\u8981\u66ff\u63db\u4e0d\u7576\u7684\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FQcmVfxvMC\">\u7e3d\u7d50<\/h2>\n<p>REPLACE()\u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728MySQL\u4e2d\u6709\u6548\u5730\u8655\u7406\u5b57\u7b26\u4e32\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u6e05\u7406\u3001\u683c\u5f0f\u5316\u8f38\u51fa\u9084\u662f\u7528\u6236\u8f38\u5165\u8655\u7406\u65b9\u9762\uff0cREPLACE()\u90fd\u80fd\u63d0\u4f9b\u4fbf\u5229\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u7528\u6236\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u53ef\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684REPLACE()\u6307\u4ee4\uff0c\u8f15\u9b06\u66ff\u63db\u5b57\u7b26\u4e32\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\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-79556","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79556","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=79556"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79556\/revisions"}],"predecessor-version":[{"id":79557,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79556\/revisions\/79557"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}