{"id":79120,"date":"2024-10-16T12:42:15","date_gmt":"2024-10-16T04:42:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79120\/"},"modified":"2024-10-16T12:42:15","modified_gmt":"2024-10-16T04:42:15","slug":"mysql%e6%8c%87%e4%bb%a4-make_set%ef%bc%88%e7%94%9f%e6%88%90set%e9%a1%9e%e5%9e%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79120\/","title":{"rendered":"MySQL\u6307\u4ee4: MAKE_SET()\uff08\u751f\u6210SET\u985e\u578b\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-make_set%ef%bc%88%e7%94%9f%e6%88%90set%e9%a1%9e%e5%9e%8b%ef%bc%89-xQvawdmwhS\">MySQL\u6307\u4ee4: MAKE_SET()\uff08\u751f\u6210SET\u985e\u578b\uff09<\/h1>\n<p>\u5728MySQL\u4e2d\uff0c<code>MAKE_SET()<\/code>\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u51fd\u6578\uff0c\u4e3b\u8981\u7528\u65bc\u751f\u6210SET\u985e\u578b\u7684\u6578\u64da\u3002SET\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u985e\u578b\uff0c\u5141\u8a31\u7528\u6236\u5728\u4e00\u7d44\u9810\u5b9a\u7fa9\u7684\u503c\u4e2d\u9078\u64c7\u591a\u500b\u503c\u3002\u9019\u4f7f\u5f97SET\u985e\u578b\u5728\u8655\u7406\u591a\u9078\u9805\u7684\u60c5\u6cc1\u4e0b\u975e\u5e38\u65b9\u4fbf\uff0c\u4f8b\u5982\u7528\u65bc\u6a19\u8a18\u3001\u6b0a\u9650\u8a2d\u7f6e\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"make_set%e5%87%bd%e6%95%b8%e7%9a%84%e8%aa%9e%e6%b3%95-xQvawdmwhS\">MAKE_SET()\u51fd\u6578\u7684\u8a9e\u6cd5<\/h2>\n<p><code>MAKE_SET()<\/code>\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>MAKE_SET(bits, str1, str2, ...)<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>bits<\/code>\u662f\u4e00\u500b\u6574\u6578\uff0c\u8868\u793a\u9078\u64c7\u7684\u4f4d\u5143\uff0c<code>str1, str2, ...<\/code>\u662f\u5c0d\u61c9\u7684\u5b57\u7b26\u4e32\u503c\u3002\u6bcf\u500b\u4f4d\u5143\u5c0d\u61c9\u4e00\u500b\u5b57\u7b26\u4e32\uff0c\u7576\u4f4d\u5143\u70ba1\u6642\uff0c\u8a72\u5b57\u7b26\u4e32\u5c07\u88ab\u5305\u542b\u5728\u751f\u6210\u7684SET\u4e2d\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-xQvawdmwhS\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u6b0a\u9650\u7684\u5834\u666f\uff0c\u6b0a\u9650\u5305\u62ec\u300c\u8b80\u53d6\u300d\u3001\u300c\u5beb\u5165\u300d\u3001\u300c\u522a\u9664\u300d\u548c\u300c\u7ba1\u7406\u300d\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528<code>MAKE_SET()<\/code>\u4f86\u751f\u6210\u7528\u6236\u7684\u6b0a\u9650\u96c6\u5408\u3002<\/p>\n<pre><code>SELECT MAKE_SET(3, '\u8b80\u53d6', '\u5beb\u5165', '\u522a\u9664', '\u7ba1\u7406') AS user_permissions;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6574\u65783\u7684\u4e8c\u9032\u5236\u8868\u793a\u70ba0011\uff0c\u9019\u610f\u5473\u8457\u300c\u8b80\u53d6\u300d\u548c\u300c\u5beb\u5165\u300d\u9019\u5169\u500b\u6b0a\u9650\u88ab\u9078\u4e2d\u3002\u57f7\u884c\u9019\u689d\u67e5\u8a62\u5f8c\uff0c\u8fd4\u56de\u7684\u7d50\u679c\u5c07\u662f\uff1a<\/p>\n<pre><code>user_permissions\n---------------\n'\u8b80\u53d6, \u5beb\u5165'<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-xQvawdmwhS\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u4f4d\u5143\u9650\u5236\uff1a<\/strong>SET\u985e\u578b\u7684\u6700\u5927\u4f4d\u5143\u6578\u91cf\u70ba64\uff0c\u56e0\u6b64<code>MAKE_SET()<\/code>\u51fd\u6578\u7684<code>bits<\/code>\u53c3\u6578\u5fc5\u9808\u57280\u523063\u4e4b\u9593\u3002<\/li>\n<li><strong>\u5b57\u7b26\u4e32\u9577\u5ea6\uff1a<\/strong>\u6bcf\u500b\u5b57\u7b26\u4e32\u7684\u9577\u5ea6\u4e0d\u80fd\u8d85\u904e64\u500b\u5b57\u7b26\u3002<\/li>\n<li><strong>NULL\u503c\uff1a<\/strong>\u5982\u679c<code>bits<\/code>\u4e2d\u6709\u4efb\u4f55\u4f4d\u5143\u8d85\u51fa\u7bc4\u570d\uff0c\u5247<code>MAKE_SET()<\/code>\u5c07\u8fd4\u56deNULL\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-xQvawdmwhS\">\u5be6\u969b\u61c9\u7528\u5834\u666f<\/h2>\n<p><code>MAKE_SET()<\/code>\u51fd\u6578\u5728\u8a31\u591a\u5be6\u969b\u61c9\u7528\u4e2d\u90fd\u975e\u5e38\u6709\u7528\u3002\u4f8b\u5982\uff0c\u5728\u7528\u6236\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u53ef\u4ee5\u7528\u4f86\u5b58\u5132\u7528\u6236\u7684\u6b0a\u9650\uff1b\u5728\u5546\u54c1\u6a19\u7c64\u7cfb\u7d71\u4e2d\uff0c\u53ef\u4ee5\u7528\u4f86\u6a19\u8a18\u5546\u54c1\u7684\u5c6c\u6027\uff1b\u5728\u65e5\u8a8c\u7cfb\u7d71\u4e2d\uff0c\u53ef\u4ee5\u7528\u4f86\u8a18\u9304\u4e8b\u4ef6\u985e\u578b\u7b49\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7528\u65bc\u5546\u54c1\u6a19\u7c64\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT MAKE_SET(5, '\u96fb\u5b50', '\u670d\u88dd', '\u98df\u54c1', '\u5bb6\u5c45', '\u66f8\u7c4d') AS product_tags;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6574\u65785\u7684\u4e8c\u9032\u5236\u8868\u793a\u70ba0101\uff0c\u8868\u793a\u300c\u96fb\u5b50\u300d\u548c\u300c\u98df\u54c1\u300d\u9019\u5169\u500b\u6a19\u7c64\u88ab\u9078\u4e2d\u3002\u57f7\u884c\u5f8c\u7684\u7d50\u679c\u5c07\u662f\uff1a<\/p>\n<pre><code>product_tags\n---------------\n'\u96fb\u5b50, \u98df\u54c1'<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xQvawdmwhS\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u7684<code>MAKE_SET()<\/code>\u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u8f15\u9b06\u751f\u6210SET\u985e\u578b\u7684\u6578\u64da\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u6b64\u51fd\u6578\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u591a\u9078\u9805\u7684\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7684\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u591a\u7a2e\u9078\u9805\u7684\u61c9\u7528\u5834\u666f\uff0c<code>MAKE_SET()<\/code>\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc<code>MAKE_SET()<\/code>\u6216\u5176\u4ed6MySQL\u6307\u4ee4\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u7279\u5225\u662f\u95dc\u65bc\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6307\u4ee4MAKE_SET()\uff0c\u7528\u65bc\u751f\u6210SET\u985e\u578b\uff0c\u65b9\u4fbf\u8655\u7406\u591a\u9078\u9805\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\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-79120","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79120","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=79120"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79120\/revisions"}],"predecessor-version":[{"id":79121,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79120\/revisions\/79121"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}