{"id":167045,"date":"2024-11-05T21:54:22","date_gmt":"2024-11-05T13:54:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/167045\/"},"modified":"2024-11-05T21:54:23","modified_gmt":"2024-11-05T13:54:23","slug":"%e5%88%a9%e7%94%a8mysql%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e5%88%86%e5%89%b2%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/167045\/","title":{"rendered":"\u5229\u7528MySQL\u5b58\u5132\u904e\u7a0b\u5206\u5272\u5b57\u7b26\u4e32"},"content":{"rendered":"<h1 id=\"%e5%88%a9%e7%94%a8mysql%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e5%88%86%e5%89%b2%e5%ad%97%e7%ac%a6%e4%b8%b2-RsOOlmmqHj\">\u5229\u7528MySQL\u5b58\u5132\u904e\u7a0b\u5206\u5272\u5b57\u7b26\u4e32<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5b57\u7b26\u4e32\u7684\u8655\u7406\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7279\u5225\u662f\u5728MySQL\u4e2d\uff0c\u5206\u5272\u5b57\u7b26\u4e32\u7684\u64cd\u4f5c\u7d93\u5e38\u51fa\u73fe\u5728\u6578\u64da\u6e05\u7406\u548c\u6578\u64da\u5206\u6790\u7684\u904e\u7a0b\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528MySQL\u7684\u5b58\u5132\u904e\u7a0b\u4f86\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%88%86%e5%89%b2%e5%ad%97%e7%ac%a6%e4%b8%b2-RsOOlmmqHj\">\u70ba\u4ec0\u9ebc\u9700\u8981\u5206\u5272\u5b57\u7b26\u4e32<\/h2>\n<p>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u4e2d\u7684\u5b57\u7b26\u4e32\u53ef\u80fd\u5305\u542b\u591a\u500b\u503c\uff0c\u9019\u4e9b\u503c\u901a\u5e38\u662f\u7531\u7279\u5b9a\u7684\u5206\u9694\u7b26\uff08\u5982\u9017\u865f\u3001\u5206\u865f\u7b49\uff09\u5206\u958b\u7684\u3002\u4f8b\u5982\uff0c\u4e00\u500b\u7528\u6236\u7684\u8208\u8da3\u53ef\u80fd\u4ee5\u9017\u865f\u5206\u9694\u7684\u5f62\u5f0f\u5b58\u5132\u5728\u4e00\u500b\u5b57\u6bb5\u4e2d\u3002\u70ba\u4e86\u9032\u884c\u66f4\u6df1\u5165\u7684\u6578\u64da\u5206\u6790\uff0c\u53ef\u80fd\u9700\u8981\u5c07\u9019\u4e9b\u5b57\u7b26\u4e32\u5206\u5272\u6210\u55ae\u7368\u7684\u503c\u3002<\/p>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%88%86%e5%89%b2%e6%96%b9%e6%b3%95-RsOOlmmqHj\">MySQL\u4e2d\u7684\u5b57\u7b26\u4e32\u5206\u5272\u65b9\u6cd5<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u96d6\u7136\u6c92\u6709\u5167\u5efa\u7684\u5b57\u7b26\u4e32\u5206\u5272\u51fd\u6578\uff0c\u4f46\u6211\u5011\u53ef\u4ee5\u901a\u904e\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u5b58\u5132\u904e\u7a0b\u4f86\u5206\u5272\u5b57\u7b26\u4e32\u7684\u6b65\u9a5f\u3002<\/p>\n<h3 id=\"%e5%89%b5%e5%bb%ba%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-RsOOlmmqHj\">\u5275\u5efa\u5b58\u5132\u904e\u7a0b<\/h3>\n<pre><code>\nDELIMITER \/\/\n\nCREATE PROCEDURE SplitString(\n    IN inputString VARCHAR(255),\n    IN delimiter CHAR(1)\n)\nBEGIN\n    DECLARE idx INT DEFAULT 1;\n    DECLARE str VARCHAR(255);\n    \n    WHILE CHAR_LENGTH(inputString) &gt; 0 DO\n        SET str = SUBSTRING_INDEX(inputString, delimiter, 1);\n        INSERT INTO your_table (your_column) VALUES (str);\n        SET inputString = SUBSTRING(inputString, CHAR_LENGTH(str) + CHAR_LENGTH(delimiter));\n    END WHILE;\nEND \/\/\n\nDELIMITER ;\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>SplitString<\/code> \u7684\u5b58\u5132\u904e\u7a0b\u3002\u9019\u500b\u904e\u7a0b\u63a5\u53d7\u5169\u500b\u53c3\u6578\uff1a\u8981\u5206\u5272\u7684\u5b57\u7b26\u4e32\u548c\u5206\u9694\u7b26\u3002\u5b83\u4f7f\u7528 <code>SUBSTRING_INDEX<\/code> \u51fd\u6578\u4f86\u63d0\u53d6\u6bcf\u500b\u5b50\u5b57\u7b26\u4e32\uff0c\u4e26\u5c07\u5176\u63d2\u5165\u5230\u6307\u5b9a\u7684\u8868\u4e2d\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-RsOOlmmqHj\">\u4f7f\u7528\u5b58\u5132\u904e\u7a0b<\/h3>\n<p>\u4e00\u65e6\u5275\u5efa\u4e86\u5b58\u5132\u904e\u7a0b\uff0c\u5c31\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u4f86\u8abf\u7528\u5b83\uff1a<\/p>\n<pre><code>\nCALL SplitString('apple,banana,cherry', ',');\n<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u628a\u5b57\u7b26\u4e32 &#8216;apple,banana,cherry&#8217; \u5206\u5272\u6210\u4e09\u500b\u90e8\u5206\uff0c\u4e26\u5c07\u5b83\u5011\u63d2\u5165\u5230 <code>your_table<\/code> \u8868\u7684 <code>your_column<\/code> \u5217\u4e2d\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-RsOOlmmqHj\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u5728\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u4e4b\u524d\uff0c\u76ee\u6a19\u8868\u5df2\u7d93\u5b58\u5728\u3002<\/li>\n<li>\u6839\u64da\u9700\u8981\u8abf\u6574\u5b57\u7b26\u4e32\u548c\u5206\u9694\u7b26\u7684\u9577\u5ea6\uff0c\u4ee5\u9069\u61c9\u5be6\u969b\u60c5\u6cc1\u3002<\/li>\n<li>\u8003\u616e\u5230\u6027\u80fd\u554f\u984c\uff0c\u5c0d\u65bc\u5927\u91cf\u6578\u64da\u7684\u5206\u5272\u64cd\u4f5c\uff0c\u5efa\u8b70\u9032\u884c\u6027\u80fd\u6e2c\u8a66\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-RsOOlmmqHj\">\u7d50\u8ad6<\/h2>\n<p>\u5229\u7528MySQL\u7684\u5b58\u5132\u904e\u7a0b\u4f86\u5206\u5272\u5b57\u7b26\u4e32\u662f\u4e00\u7a2e\u9748\u6d3b\u4e14\u6709\u6548\u7684\u65b9\u6cd5\u3002\u901a\u904e\u81ea\u5b9a\u7fa9\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u4f86\u8655\u7406\u5b57\u7b26\u4e32\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u53ef\u5206\u6790\u6027\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u7c21\u5316\u4e86\u6578\u64da\u8655\u7406\u7684\u904e\u7a0b\uff0c\u9084\u80fd\u5920\u5728\u6578\u64da\u5eab\u4e2d\u4fdd\u6301\u6578\u64da\u7684\u6574\u6f54\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u64cd\u4f5c\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0cServer.HK \u90fd\u80fd\u63d0\u4f9b\u76f8\u61c9\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u904b\u7528\u60a8\u7684\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5229\u7528MySQL\u5b58\u5132\u904e\u7a0b\u6709\u6548\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u64cd\u4f5c\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-167045","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167045","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=167045"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167045\/revisions"}],"predecessor-version":[{"id":167046,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/167045\/revisions\/167046"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=167045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=167045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=167045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}