{"id":174953,"date":"2024-11-08T01:09:19","date_gmt":"2024-11-07T17:09:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/174953\/"},"modified":"2024-11-08T01:09:20","modified_gmt":"2024-11-07T17:09:20","slug":"%e5%a6%82%e4%bd%95%e6%b8%85%e7%a9%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%9f%90%e5%80%8b%e5%ad%97%e6%ae%b5%e7%9a%84%e5%80%bc%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%b8%85%e7%a9%ba%e4%b8%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/174953\/","title":{"rendered":"\u5982\u4f55\u6e05\u7a7a\u6578\u64da\u5eab\u4e2d\u67d0\u500b\u5b57\u6bb5\u7684\u503c\uff1f (\u6578\u64da\u5eab\u4e2d\u6e05\u7a7a\u4e00\u500b\u5b57\u6bb5\u7684\u503c)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e6%b8%85%e7%a9%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%9f%90%e5%80%8b%e5%ad%97%e6%ae%b5%e7%9a%84%e5%80%bc%ef%bc%9f-BetDGIdllH\">\u5982\u4f55\u6e05\u7a7a\u6578\u64da\u5eab\u4e2d\u67d0\u500b\u5b57\u6bb5\u7684\u503c\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6e05\u7a7a\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u662f\u4e00\u500b\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u9019\u901a\u5e38\u662f\u56e0\u70ba\u9700\u8981\u91cd\u7f6e\u6578\u64da\u3001\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u4fe1\u606f\u6216\u662f\u9032\u884c\u6578\u64da\u7dad\u8b77\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u6e05\u7a7a\u67d0\u500b\u5b57\u6bb5\u7684\u503c\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\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%e6%b8%85%e7%a9%ba%e5%ad%97%e6%ae%b5%e7%9a%84%e5%80%bc%ef%bc%9f-BetDGIdllH\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7a7a\u5b57\u6bb5\u7684\u503c\uff1f<\/h2>\n<p>\u6e05\u7a7a\u5b57\u6bb5\u7684\u503c\u53ef\u80fd\u6709\u591a\u7a2e\u539f\u56e0\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u6e05\u7406\uff1a\u522a\u9664\u904e\u6642\u6216\u4e0d\u6b63\u78ba\u7684\u4fe1\u606f\u3002<\/li>\n<li>\u91cd\u7f6e\u6578\u64da\uff1a\u5728\u6e2c\u8a66\u6216\u958b\u767c\u74b0\u5883\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u91cd\u7f6e\u67d0\u4e9b\u5b57\u6bb5\u7684\u503c\u3002<\/li>\n<li>\u96b1\u79c1\u4fdd\u8b77\uff1a\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u522a\u9664\u7528\u6236\u7684\u500b\u4eba\u4fe1\u606f\u4ee5\u4fdd\u8b77\u96b1\u79c1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%a8%e4%b8%8d%e5%90%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%b8%85%e7%a9%ba%e5%ad%97%e6%ae%b5%e7%9a%84%e6%96%b9%e5%bc%8f-BetDGIdllH\">\u5728\u4e0d\u540c\u6578\u64da\u5eab\u4e2d\u6e05\u7a7a\u5b57\u6bb5\u7684\u65b9\u5f0f<\/h2>\n<h3 id=\"1-mysql-BetDGIdllH\">1. MySQL<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528UPDATE\u8a9e\u53e5\u4f86\u6e05\u7a7a\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d SET \u5b57\u6bb5\u540d = NULL WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201c\u7528\u6236\u201d\u7684\u8868\uff0c\u4e26\u4e14\u60f3\u8981\u6e05\u7a7a\u201c\u5730\u5740\u201d\u5b57\u6bb5\u7684\u503c\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>UPDATE \u7528\u6236 SET \u5730\u5740 = NULL WHERE \u7528\u6236ID = 1;<\/code><\/pre>\n<h3 id=\"2-postgresql-BetDGIdllH\">2. PostgreSQL<\/h3>\n<p>\u5728PostgreSQL\u4e2d\uff0c\u6e05\u7a7a\u5b57\u6bb5\u7684\u65b9\u5f0f\u8207MySQL\u985e\u4f3c\u3002\u4f7f\u7528UPDATE\u8a9e\u53e5\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d SET \u5b57\u6bb5\u540d = NULL WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE \u7528\u6236 SET \u5730\u5740 = NULL WHERE \u7528\u6236ID = 1;<\/code><\/pre>\n<h3 id=\"3-sql-server-BetDGIdllH\">3. SQL Server<\/h3>\n<p>\u5728SQL Server\u4e2d\uff0c\u540c\u6a23\u53ef\u4ee5\u4f7f\u7528UPDATE\u8a9e\u53e5\u4f86\u6e05\u7a7a\u5b57\u6bb5\u7684\u503c\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d SET \u5b57\u6bb5\u540d = NULL WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE \u7528\u6236 SET \u5730\u5740 = NULL WHERE \u7528\u6236ID = 1;<\/code><\/pre>\n<h3 id=\"4-oracle-BetDGIdllH\">4. Oracle<\/h3>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u6e05\u7a7a\u5b57\u6bb5\u7684\u65b9\u5f0f\u4e5f\u985e\u4f3c\uff0c\u4f7f\u7528UPDATE\u8a9e\u53e5\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d SET \u5b57\u6bb5\u540d = NULL WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE \u7528\u6236 SET \u5730\u5740 = NULL WHERE \u7528\u6236ID = 1;<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-BetDGIdllH\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u6e05\u7a7a\u5b57\u6bb5\u7684\u503c\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u5728\u57f7\u884cUPDATE\u8a9e\u53e5\u4e4b\u524d\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u4e1f\u5931\u91cd\u8981\u4fe1\u606f\u3002<\/li>\n<li>\u4f7f\u7528WHERE\u689d\u4ef6\u4f86\u9650\u5236\u66f4\u65b0\u7684\u7bc4\u570d\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u66f4\u6539\u3002<\/li>\n<li>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6e05\u7a7a\u5b57\u6bb5\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u9700\u8b39\u614e\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-BetDGIdllH\">\u7e3d\u7d50<\/h2>\n<p>\u6e05\u7a7a\u6578\u64da\u5eab\u4e2d\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u662f\u4e00\u500b\u7c21\u55ae\u4f46\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u7121\u8ad6\u662f\u5728\u6578\u64da\u6e05\u7406\u3001\u91cd\u7f6e\u9084\u662f\u96b1\u79c1\u4fdd\u8b77\u65b9\u9762\u90fd\u5177\u6709\u5be6\u7528\u6027\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684SQL\u8a9e\u53e5\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u4fe1\u606f\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6e05\u7a7a\u67d0\u500b\u5b57\u6bb5\u7684\u503c\uff0c\u7c21\u55ae\u6b65\u9a5f\u6559\u4f60\u6709\u6548\u7ba1\u7406\u6578\u64da\uff0c\u4fdd\u6301\u6578\u64da\u5eab\u6574\u6f54\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-174953","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174953","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=174953"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174953\/revisions"}],"predecessor-version":[{"id":174954,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/174953\/revisions\/174954"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=174953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=174953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=174953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}