{"id":76718,"date":"2024-10-16T09:15:17","date_gmt":"2024-10-16T01:15:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76718\/"},"modified":"2024-10-16T09:15:18","modified_gmt":"2024-10-16T01:15:18","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%8f%96%e4%bd%99%e9%81%8b%e7%ae%97%ef%bc%8c%e4%bd%a0%e4%ba%86%e8%a7%a3%e5%97%8e%ef%bc%9f-mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%8b%e7%ae%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76718\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u4e2d\u7684\u53d6\u4f59\u904b\u7b97\uff0c\u4f60\u4e86\u89e3\u55ce\uff1f (MySQL\u6578\u64da\u5eab\u904b\u7b97\u53d6\u4f59\u6578)"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%8f%96%e4%bd%99%e9%81%8b%e7%ae%97%ef%bc%8c%e4%bd%a0%e4%ba%86%e8%a7%a3%e5%97%8e%ef%bc%9f-sucIrMyaFm\">MySQL\u6578\u64da\u5eab\u4e2d\u7684\u53d6\u4f59\u904b\u7b97\uff0c\u4f60\u4e86\u89e3\u55ce\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u6578\u64da\u5eab\uff0c\u56e0\u5176\u9748\u6d3b\u6027\u548c\u9ad8\u6548\u6027\u800c\u53d7\u5230\u958b\u767c\u8005\u7684\u9752\u775e\u3002\u5728MySQL\u4e2d\uff0c\u53d6\u4f59\u904b\u7b97\u662f\u4e00\u500b\u91cd\u8981\u7684\u6578\u5b78\u904b\u7b97\uff0c\u901a\u5e38\u7528\u65bc\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u751f\u6210\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u4e2d\u7684\u53d6\u4f59\u904b\u7b97\uff0c\u5305\u62ec\u5176\u57fa\u672c\u6982\u5ff5\u3001\u7528\u6cd5\u53ca\u5be6\u969b\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e5%8f%96%e4%bd%99%e9%81%8b%e7%ae%97%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-sucIrMyaFm\">\u53d6\u4f59\u904b\u7b97\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u53d6\u4f59\u904b\u7b97\u662f\u6307\u5728\u6574\u6578\u9664\u6cd5\u4e2d\uff0c\u8a08\u7b97\u9664\u6cd5\u7684\u9918\u6578\u3002\u5728\u6578\u5b78\u4e2d\uff0c\u5c0d\u65bc\u5169\u500b\u6574\u6578a\u548cb\uff0c\u53d6\u4f59\u904b\u7b97\u53ef\u4ee5\u8868\u793a\u70ba\uff1a<\/p>\n<pre><code>c = a % b<\/code><\/pre>\n<p>\u5176\u4e2d\uff0cc\u662f\u9918\u6578\uff0ca\u662f\u88ab\u9664\u6578\uff0cb\u662f\u9664\u6578\u3002\u53d6\u4f59\u904b\u7b97\u7684\u7d50\u679c\u7e3d\u662f\u5c0f\u65bc\u9664\u6578b\u3002\u4f8b\u5982\uff0c7 % 3\u7684\u7d50\u679c\u662f1\uff0c\u56e0\u70ba7\u9664\u4ee53\u7684\u5546\u662f2\uff0c\u9918\u6578\u662f1\u3002<\/p>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e5%8f%96%e4%bd%99%e9%81%8b%e7%ae%97-sucIrMyaFm\">MySQL\u4e2d\u7684\u53d6\u4f59\u904b\u7b97<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u53d6\u4f59\u904b\u7b97\u53ef\u4ee5\u4f7f\u7528\u201c%\u201d\u7b26\u865f\u4f86\u5be6\u73fe\u3002\u9019\u500b\u904b\u7b97\u7b26\u53ef\u4ee5\u7528\u65bcSELECT\u8a9e\u53e5\u4e2d\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u6578\u64da\u7be9\u9078\u548c\u8a08\u7b97\u3002\u4ee5\u4e0b\u662f\u53d6\u4f59\u904b\u7b97\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>SELECT a, b, (a % b) AS remainder FROM table_name;<\/code><\/pre>\n<p>\u9019\u88e1\uff0ctable_name\u662f\u6578\u64da\u8868\u7684\u540d\u7a31\uff0ca\u548cb\u662f\u8868\u4e2d\u7684\u5217\u540d\u3002\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56dea\u548cb\u7684\u503c\u4ee5\u53ca\u5b83\u5011\u7684\u9918\u6578\u3002<\/p>\n<h2 id=\"%e5%8f%96%e4%bd%99%e9%81%8b%e7%ae%97%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8-sucIrMyaFm\">\u53d6\u4f59\u904b\u7b97\u7684\u5be6\u969b\u61c9\u7528<\/h2>\n<p>\u53d6\u4f59\u904b\u7b97\u5728\u6578\u64da\u5eab\u4e2d\u7684\u61c9\u7528\u975e\u5e38\u5ee3\u6cdb\uff0c\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u898b\u7684\u4f8b\u5b50\uff1a<\/p>\n<ul>\n<li><strong>\u5206\u7d44\u6578\u64da\uff1a<\/strong>\u5728\u5831\u544a\u751f\u6210\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u53d6\u4f59\u904b\u7b97\u4f86\u5c07\u6578\u64da\u5206\u7d44\u3002\u4f8b\u5982\uff0c\u5c07\u6bcf10\u500b\u8a18\u9304\u5206\u70ba\u4e00\u7d44\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/li>\n<pre><code>SELECT *, (ROW_NUMBER() OVER (ORDER BY id) % 10) AS group_number FROM table_name;<\/code><\/pre>\n<li><strong>\u6aa2\u67e5\u5076\u6578\u548c\u5947\u6578\uff1a<\/strong>\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528\u53d6\u4f59\u904b\u7b97\u4f86\u6aa2\u67e5\u6578\u5b57\u7684\u5947\u5076\u6027\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u6240\u6709\u5076\u6578\u8a18\u9304\uff1a<\/li>\n<pre><code>SELECT * FROM table_name WHERE number_column % 2 = 0;<\/code><\/pre>\n<li><strong>\u5faa\u74b0\u8a08\u7b97\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53d6\u4f59\u904b\u7b97\u53ef\u4ee5\u7528\u65bc\u5faa\u74b0\u8a08\u7b97\uff0c\u4f8b\u5982\u5728\u904a\u6232\u958b\u767c\u4e2d\uff0c\u7576\u9700\u8981\u5728\u4e00\u7d44\u9078\u9805\u4e2d\u5faa\u74b0\u9078\u64c7\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u53d6\u4f59\u904b\u7b97\u4f86\u78ba\u4fdd\u9078\u64c7\u4e0d\u6703\u8d85\u51fa\u7bc4\u570d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-sucIrMyaFm\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u53d6\u4f59\u904b\u7b97\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u9664\u6578b\u4e0d\u80fd\u70ba\u96f6\uff0c\u56e0\u70ba\u9019\u6703\u5c0e\u81f4\u904b\u7b97\u932f\u8aa4\u3002<\/li>\n<li>\u53d6\u4f59\u904b\u7b97\u7684\u7d50\u679c\u985e\u578b\u8207\u88ab\u9664\u6578a\u7684\u985e\u578b\u76f8\u540c\uff0c\u56e0\u6b64\u5728\u9032\u884c\u8a08\u7b97\u6642\u8981\u6ce8\u610f\u6578\u64da\u985e\u578b\u7684\u517c\u5bb9\u6027\u3002<\/li>\n<li>\u5728\u5927\u6578\u64da\u96c6\u4e0a\u9032\u884c\u53d6\u4f59\u904b\u7b97\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u56e0\u6b64\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\u61c9\u8003\u616e\u5230\u9019\u4e00\u9ede\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sucIrMyaFm\">\u7e3d\u7d50<\/h2>\n<p>\u53d6\u4f59\u904b\u7b97\u5728MySQL\u6578\u64da\u5eab\u4e2d\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u751f\u6210\u3002\u901a\u904e\u7406\u89e3\u5176\u57fa\u672c\u6982\u5ff5\u548c\u5be6\u969b\u61c9\u7528\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u5229\u7528MySQL\u9032\u884c\u6578\u64da\u8655\u7406\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u7ba1\u7406\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6578\u64da\u5eab\u4e2d\u7684\u53d6\u4f59\u904b\u7b97\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528MOD\u51fd\u6578\u9032\u884c\u6578\u64da\u8655\u7406\u548c\u67e5\u8a62\u512a\u5316\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-76718","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76718","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=76718"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76718\/revisions"}],"predecessor-version":[{"id":76719,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76718\/revisions\/76719"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}