{"id":78340,"date":"2024-10-16T11:46:18","date_gmt":"2024-10-16T03:46:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78340\/"},"modified":"2024-10-16T11:46:18","modified_gmt":"2024-10-16T03:46:18","slug":"mysql%e6%8c%87%e4%bb%a4-deterministic%ef%bc%88%e7%a2%ba%e5%ae%9a%e6%80%a7%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78340\/","title":{"rendered":"MySQL\u6307\u4ee4: DETERMINISTIC\uff08\u78ba\u5b9a\u6027\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-deterministic%ef%bc%88%e7%a2%ba%e5%ae%9a%e6%80%a7%ef%bc%89-FbYHdHmvgA\">MySQL\u6307\u4ee4: DETERMINISTIC\uff08\u78ba\u5b9a\u6027\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u8cc7\u6599\u5eab\u7ba1\u7406\u6642\uff0c\u4e86\u89e3\u5404\u7a2e\u6307\u4ee4\u7684\u7279\u6027\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5176\u4e2d\uff0c<code>DETERMINISTIC<\/code>\u662f\u4e00\u500b\u95dc\u9375\u7684\u6307\u4ee4\uff0c\u7528\u65bc\u5b9a\u7fa9\u51fd\u6578\u7684\u884c\u70ba\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e<code>DETERMINISTIC<\/code>\u7684\u6982\u5ff5\u3001\u7528\u9014\u53ca\u5176\u5728MySQL\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afdeterministic%ef%bc%9f-FbYHdHmvgA\">\u4ec0\u9ebc\u662fDETERMINISTIC\uff1f<\/h2>\n<p><code>DETERMINISTIC<\/code>\u662fMySQL\u4e2d\u7528\u4f86\u6a19\u8a18\u51fd\u6578\u7684\u4e00\u500b\u5c6c\u6027\u3002\u7576\u4e00\u500b\u51fd\u6578\u88ab\u6a19\u8a18\u70ba<code>DETERMINISTIC<\/code>\u6642\uff0c\u9019\u610f\u5473\u8457\u6bcf\u6b21\u4f7f\u7528\u76f8\u540c\u7684\u8f38\u5165\u53c3\u6578\u6642\uff0c\u8a72\u51fd\u6578\u90fd\u6703\u8fd4\u56de\u76f8\u540c\u7684\u7d50\u679c\u3002\u9019\u8207<code>NON_DETERMINISTIC<\/code>\u51fd\u6578\u76f8\u5c0d\uff0c\u5f8c\u8005\u5728\u76f8\u540c\u7684\u8f38\u5165\u4e0b\u53ef\u80fd\u8fd4\u56de\u4e0d\u540c\u7684\u7d50\u679c\u3002<\/p>\n<h2 id=\"deterministic%e7%9a%84%e7%94%a8%e9%80%94-FbYHdHmvgA\">DETERMINISTIC\u7684\u7528\u9014<\/h2>\n<p>\u4f7f\u7528<code>DETERMINISTIC<\/code>\u6a19\u8a18\u7684\u4e3b\u8981\u539f\u56e0\u662f\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u548c\u53ef\u9810\u6e2c\u6027\u3002\u7576MySQL\u77e5\u9053\u4e00\u500b\u51fd\u6578\u662f\u78ba\u5b9a\u6027\u7684\u6642\u5019\uff0c\u5b83\u53ef\u4ee5\u5728\u67e5\u8a62\u512a\u5316\u904e\u7a0b\u4e2d\u505a\u51fa\u66f4\u597d\u7684\u6c7a\u7b56\u3002\u4f8b\u5982\uff0cMySQL\u53ef\u4ee5\u5c07<code>DETERMINISTIC<\/code>\u51fd\u6578\u7684\u7d50\u679c\u5feb\u53d6\uff0c\u5f9e\u800c\u6e1b\u5c11\u91cd\u8907\u8a08\u7b97\u7684\u9700\u6c42\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%badeterministic%e5%87%bd%e6%95%b8-FbYHdHmvgA\">\u7bc4\u4f8b\uff1a\u5275\u5efaDETERMINISTIC\u51fd\u6578<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b<code>DETERMINISTIC<\/code>\u51fd\u6578\uff1a<\/p>\n<pre><code>CREATE FUNCTION add_numbers(a INT, b INT)\nRETURNS INT\nDETERMINISTIC\nBEGIN\n    RETURN a + b;\nEND;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u51fd\u6578<code>add_numbers<\/code>\u63a5\u53d7\u5169\u500b\u6574\u6578\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u5b83\u5011\u7684\u548c\u3002\u7531\u65bc\u9019\u500b\u51fd\u6578\u662f\u78ba\u5b9a\u6027\u7684\uff0c\u7121\u8ad6\u4f55\u6642\u4f7f\u7528\u76f8\u540c\u7684\u53c3\u6578\uff0c\u7d50\u679c\u90fd\u5c07\u662f\u4e00\u81f4\u7684\u3002<\/p>\n<h3 id=\"deterministic%e8%88%87non_deterministic%e7%9a%84%e6%af%94%e8%bc%83-FbYHdHmvgA\">DETERMINISTIC\u8207NON_DETERMINISTIC\u7684\u6bd4\u8f03<\/h3>\n<p>\u5728\u9078\u64c7\u4f7f\u7528<code>DETERMINISTIC<\/code>\u6216<code>NON_DETERMINISTIC<\/code>\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u8003\u616e\u51fd\u6578\u7684\u7279\u6027\u3002\u4ee5\u4e0b\u662f\u5169\u8005\u7684\u6bd4\u8f03\uff1a<\/p>\n<ul>\n<li><strong>DETERMINISTIC\uff1a<\/strong>\u6bcf\u6b21\u76f8\u540c\u8f38\u5165\u8fd4\u56de\u76f8\u540c\u7d50\u679c\uff0c\u9069\u5408\u7528\u65bc\u6578\u5b78\u8a08\u7b97\u6216\u56fa\u5b9a\u908f\u8f2f\u7684\u51fd\u6578\u3002<\/li>\n<li><strong>NON_DETERMINISTIC\uff1a<\/strong>\u76f8\u540c\u8f38\u5165\u53ef\u80fd\u8fd4\u56de\u4e0d\u540c\u7d50\u679c\uff0c\u901a\u5e38\u7528\u65bc\u4f9d\u8cf4\u65bc\u5916\u90e8\u72c0\u614b\u6216\u96a8\u6a5f\u6578\u7684\u51fd\u6578\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8deterministic%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-FbYHdHmvgA\">\u4f7f\u7528DETERMINISTIC\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528<code>DETERMINISTIC<\/code>\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u78ba\u4fdd\u51fd\u6578\u7684\u908f\u8f2f\u78ba\u5be6\u662f\u78ba\u5b9a\u6027\u7684\u3002\u5982\u679c\u4e00\u500b\u51fd\u6578\u88ab\u6a19\u8a18\u70ba<code>DETERMINISTIC<\/code>\u4f46\u5be6\u969b\u4e0a\u662f<code>NON_DETERMINISTIC<\/code>\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u4e00\u81f4\u7684\u7d50\u679c\uff0c\u9032\u800c\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FbYHdHmvgA\">\u7e3d\u7d50<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c<code>DETERMINISTIC<\/code>\u662f\u4e00\u500b\u91cd\u8981\u7684\u5c6c\u6027\uff0c\u7528\u65bc\u6a19\u8a18\u51fd\u6578\u7684\u884c\u70ba\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528<code>DETERMINISTIC<\/code>\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u548c\u53ef\u9810\u6e2c\u6027\u3002\u4e86\u89e3\u9019\u4e00\u6982\u5ff5\u5c0d\u65bc\u512a\u5316\u8cc7\u6599\u5eab\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u5c0d\u65bc<code>DETERMINISTIC<\/code>\u6216\u5176\u4ed6MySQL\u529f\u80fd\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>\u89e3\u6c7a\u65b9\u6848\u548c\u5176\u4ed6\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684DETERMINISTIC\u6307\u4ee4\uff0c\u786e\u4fdd\u51fd\u6570\u5728\u76f8\u540c\u8f93\u5165\u4e0b\u8fd4\u56de\u76f8\u540c\u7ed3\u679c\uff0c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u4e0e\u53ef\u9884\u6d4b\u6027\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-78340","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78340","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=78340"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78340\/revisions"}],"predecessor-version":[{"id":78341,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78340\/revisions\/78341"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}