{"id":195381,"date":"2024-11-13T14:33:22","date_gmt":"2024-11-13T06:33:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195381\/"},"modified":"2024-11-13T14:33:23","modified_gmt":"2024-11-13T06:33:23","slug":"%e6%b8%b8%e6%a8%99%e8%85%b3%e6%9c%ac%e6%80%a7%e8%83%bd%e5%95%8f%e9%a1%8c%e8%a9%b3%e8%a7%a3%e4%b9%8b%e6%a1%88%e4%be%8b%e5%af%a6%e8%b8%90%e7%af%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195381\/","title":{"rendered":"\u6e38\u6a19\u8173\u672c\u6027\u80fd\u554f\u984c\u8a73\u89e3\u4e4b\u6848\u4f8b\u5be6\u8e10\u7bc7"},"content":{"rendered":"<h1 id=\"%e6%b8%b8%e6%a8%99%e8%85%b3%e6%9c%ac%e6%80%a7%e8%83%bd%e5%95%8f%e9%a1%8c%e8%a9%b3%e8%a7%a3%e4%b9%8b%e6%a1%88%e4%be%8b%e5%af%a6%e8%b8%90%e7%af%87-LxCRWeTgyg\">\u6e38\u6a19\u8173\u672c\u6027\u80fd\u554f\u984c\u8a73\u89e3\u4e4b\u6848\u4f8b\u5be6\u8e10\u7bc7<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6027\u80fd\u512a\u5316\u5df2\u6210\u70ba\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u91cd\u8981\u4efb\u52d9\u4e4b\u4e00\u3002\u5c24\u5176\u662f\u5728\u4f7f\u7528\u6e38\u6a19\u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u6027\u80fd\u554f\u984c\u5f80\u5f80\u6703\u6210\u70ba\u7cfb\u7d71\u74f6\u9838\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6e38\u6a19\u8173\u672c\u7684\u6027\u80fd\u554f\u984c\uff0c\u4e26\u901a\u904e\u5177\u9ad4\u6848\u4f8b\u4f86\u5206\u6790\u5982\u4f55\u512a\u5316\u9019\u4e9b\u554f\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%b8%b8%e6%a8%99%ef%bc%9f-LxCRWeTgyg\">\u4ec0\u9ebc\u662f\u6e38\u6a19\uff1f<\/h2>\n<p>\u6e38\u6a19\u662f\u4e00\u7a2e\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5141\u8a31\u7528\u6236\u9010\u884c\u8655\u7406\u67e5\u8a62\u7d50\u679c\u3002\u5b83\u5728\u9700\u8981\u9010\u884c\u6aa2\u7d22\u548c\u64cd\u4f5c\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5982\u679c\u4f7f\u7528\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u6e38\u6a19\u7684\u4e3b\u8981\u985e\u578b\u5305\u62ec\u975c\u614b\u6e38\u6a19\u3001\u52d5\u614b\u6e38\u6a19\u548c\u5feb\u7167\u6e38\u6a19\uff0c\u6bcf\u7a2e\u985e\u578b\u90fd\u6709\u5176\u7279\u5b9a\u7684\u4f7f\u7528\u5834\u666f\u548c\u6027\u80fd\u7279\u9ede\u3002<\/p>\n<h2 id=\"%e6%b8%b8%e6%a8%99%e6%80%a7%e8%83%bd%e5%95%8f%e9%a1%8c%e7%9a%84%e6%a0%b9%e6%ba%90-LxCRWeTgyg\">\u6e38\u6a19\u6027\u80fd\u554f\u984c\u7684\u6839\u6e90<\/h2>\n<p>\u6e38\u6a19\u6027\u80fd\u554f\u984c\u901a\u5e38\u6e90\u65bc\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u8cc7\u6e90\u6d88\u8017\uff1a<\/strong>\u6e38\u6a19\u5728\u5167\u5b58\u4e2d\u4fdd\u6301\u72c0\u614b\uff0c\u9019\u6703\u6d88\u8017\u984d\u5916\u7684\u7cfb\u7d71\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u4e0a\u4e0b\u6587\u5207\u63db\uff1a<\/strong>\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u6e38\u6a19\u9700\u8981\u983b\u7e41\u5730\u5728\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u4e4b\u9593\u5207\u63db\uff0c\u9019\u6703\u589e\u52a0\u5ef6\u9072\u3002<\/li>\n<li><strong>\u9396\u5b9a\u554f\u984c\uff1a<\/strong>\u6e38\u6a19\u5728\u64cd\u4f5c\u6578\u64da\u6642\u53ef\u80fd\u6703\u5c0e\u81f4\u9396\u5b9a\uff0c\u5f71\u97ff\u5176\u4ed6\u67e5\u8a62\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%a1%88%e4%be%8b%e5%88%86%e6%9e%90%ef%bc%9a%e6%b8%b8%e6%a8%99%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96-LxCRWeTgyg\">\u6848\u4f8b\u5206\u6790\uff1a\u6e38\u6a19\u6027\u80fd\u512a\u5316<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5177\u9ad4\u7684\u6848\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u901a\u904e\u512a\u5316\u6e38\u6a19\u4f86\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<h3 id=\"%e6%a1%88%e4%be%8b%e8%83%8c%e6%99%af-LxCRWeTgyg\">\u6848\u4f8b\u80cc\u666f<\/h3>\n<p>\u67d0\u516c\u53f8\u5728\u5176\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u6e38\u6a19\u4f86\u8655\u7406\u5927\u91cf\u7684\u5ba2\u6236\u8a02\u55ae\u6578\u64da\u3002\u6bcf\u6b21\u67e5\u8a62\u90fd\u9700\u8981\u904d\u6b77\u6578\u5343\u689d\u8a18\u9304\uff0c\u9019\u5c0e\u81f4\u4e86\u7cfb\u7d71\u7684\u6027\u80fd\u74f6\u9838\uff0c\u67e5\u8a62\u6642\u9593\u9577\u9054\u5e7e\u5206\u9418\u3002<\/p>\n<h3 id=\"%e5%8e%9f%e5%a7%8b%e6%b8%b8%e6%a8%99%e4%bb%a3%e7%a2%bc-LxCRWeTgyg\">\u539f\u59cb\u6e38\u6a19\u4ee3\u78bc<\/h3>\n<pre><code>\nDECLARE order_cursor CURSOR FOR\nSELECT order_id, customer_id, order_date FROM orders;\n\nOPEN order_cursor;\n\nFETCH NEXT FROM order_cursor INTO @order_id, @customer_id, @order_date;\n\nWHILE @@FETCH_STATUS = 0\nBEGIN\n    -- \u8655\u7406\u6bcf\u4e00\u689d\u8a02\u55ae\n    FETCH NEXT FROM order_cursor INTO @order_id, @customer_id, @order_date;\nEND\n\nCLOSE order_cursor;\nDEALLOCATE order_cursor;\n<\/code><\/pre>\n<h3 id=\"%e6%80%a7%e8%83%bd%e5%95%8f%e9%a1%8c%e5%88%86%e6%9e%90-LxCRWeTgyg\">\u6027\u80fd\u554f\u984c\u5206\u6790<\/h3>\n<p>\u4e0a\u8ff0\u4ee3\u78bc\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u6548\u7387\u4f4e\u4e0b\uff0c\u4e3b\u8981\u539f\u56e0\u5728\u65bc\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u6e38\u6a19\u9010\u884c\u8655\u7406\u6578\u64da\uff0c\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<li>\u7f3a\u4e4f\u6279\u91cf\u8655\u7406\u7684\u80fd\u529b\uff0c\u7121\u6cd5\u5145\u5206\u5229\u7528\u6578\u64da\u5eab\u7684\u512a\u5316\u529f\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%84%aa%e5%8c%96%e6%96%b9%e6%a1%88-LxCRWeTgyg\">\u512a\u5316\u65b9\u6848<\/h3>\n<p>\u70ba\u4e86\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\uff0c\u6211\u5011\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u96c6\u5408\u64cd\u4f5c\u4f86\u66ff\u4ee3\u6e38\u6a19\u3002\u4ee5\u4e0b\u662f\u512a\u5316\u5f8c\u7684\u4ee3\u78bc\uff1a<\/p>\n<pre><code>\nUPDATE orders\nSET status = 'processed'\nWHERE order_date &lt; GETDATE() - 30;\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u901a\u904e\u4e00\u6b21\u6027\u66f4\u65b0\u6240\u6709\u7b26\u5408\u689d\u4ef6\u7684\u8a02\u55ae\uff0c\u986f\u8457\u63d0\u9ad8\u4e86\u6027\u80fd\uff0c\u67e5\u8a62\u6642\u9593\u5f9e\u5e7e\u5206\u9418\u7e2e\u77ed\u81f3\u5e7e\u79d2\u9418\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-LxCRWeTgyg\">\u7d50\u8ad6<\/h2>\n<p>\u6e38\u6a19\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\uff0c\u4f46\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u61c9\u8b39\u614e\u4f7f\u7528\u3002\u901a\u904e\u6848\u4f8b\u5206\u6790\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\uff0c\u4f7f\u7528\u96c6\u5408\u64cd\u4f5c\u4f86\u66ff\u4ee3\u6e38\u6a19\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u6e1b\u5c11\u7cfb\u7d71\u8cc7\u6e90\u7684\u6d88\u8017\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u64cd\u4f5c\u65b9\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LxCRWeTgyg\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7684\u904e\u7a0b\u4e2d\uff0c\u6e38\u6a19\u7684\u4f7f\u7528\u9700\u8981\u8b39\u614e\u8003\u91cf\u3002\u900f\u904e\u672c\u7bc7\u6587\u7ae0\u7684\u6848\u4f8b\u5be6\u8e10\uff0c\u6211\u5011\u5e0c\u671b\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u6e38\u6a19\u7684\u6027\u80fd\u554f\u984c\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0e\u6e38\u6a19\u8173\u672c\u6027\u80fd\u554f\u984c\uff0c\u901a\u904e\u5be6\u969b\u6848\u4f8b\u5206\u6790\uff0c\u63d0\u4f9b\u89e3\u6c7a\u65b9\u6848\u8207\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\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-195381","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195381","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=195381"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195381\/revisions"}],"predecessor-version":[{"id":195382,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195381\/revisions\/195382"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}