{"id":138353,"date":"2024-10-31T13:46:19","date_gmt":"2024-10-31T05:46:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/138353\/"},"modified":"2024-10-31T13:46:20","modified_gmt":"2024-10-31T05:46:20","slug":"sql-server-2008%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/138353\/","title":{"rendered":"SQL Server 2008\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"sql-server-2008%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e6%96%b9%e6%b3%95-PHTjUVNmhY\">SQL Server 2008\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6279\u91cf\u522a\u9664\u6578\u64da\u662f\u4e00\u9805\u5e38\u898b\u7684\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u6e05\u7406\u904e\u6642\u6216\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u6642\u3002SQL Server 2008\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u6279\u91cf\u522a\u9664\uff0c\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u6709\u6548\u7684\u6280\u8853\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8delete%e8%aa%9e%e5%8f%a5-PHTjUVNmhY\">\u4f7f\u7528DELETE\u8a9e\u53e5<\/h2>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u5f0f\u662f\u4f7f\u7528DELETE\u8a9e\u53e5\u3002\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u65bc\u522a\u9664\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u591a\u689d\u8a18\u9304\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684DELETE\u8a9e\u53e5\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u522a\u9664\u6240\u6709\u5e74\u9f61\u5c0f\u65bc18\u6b72\u7684\u7528\u6236\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>DELETE FROM Users WHERE Age &lt; 18;<\/code><\/pre>\n<h3 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-PHTjUVNmhY\">\u6ce8\u610f\u4e8b\u9805<\/h3>\n<ul>\n<li>\u5728\u57f7\u884cDELETE\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u4f7f\u7528SELECT\u8a9e\u53e5\u78ba\u8a8d\u5c07\u8981\u522a\u9664\u7684\u6578\u64da\u3002<\/li>\n<li>\u6279\u91cf\u522a\u9664\u53ef\u80fd\u6703\u5c0e\u81f4\u9396\u5b9a\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\uff0c\u56e0\u6b64\u53ef\u4ee5\u8003\u616e\u5206\u6279\u522a\u9664\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8top%e5%92%8cdelete%e8%aa%9e%e5%8f%a5%e7%b5%90%e5%90%88-PHTjUVNmhY\">\u4f7f\u7528TOP\u548cDELETE\u8a9e\u53e5\u7d50\u5408<\/h2>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u5927\u91cf\u6578\u64da\uff0c\u4f46\u53c8\u4e0d\u60f3\u4e00\u6b21\u6027\u522a\u9664\u6240\u6709\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528TOP\u95dc\u9375\u5b57\u4f86\u9650\u5236\u6bcf\u6b21\u522a\u9664\u7684\u8a18\u9304\u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>WHILE (SELECT COUNT(*) FROM Users WHERE Age &lt; 18) &gt; 0\nBEGIN\n    DELETE TOP (100) FROM Users WHERE Age &lt; 18;\nEND;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u6bcf\u6b21\u522a\u9664100\u689d\u5e74\u9f61\u5c0f\u65bc18\u6b72\u7684\u8a18\u9304\uff0c\u76f4\u5230\u6240\u6709\u7b26\u5408\u689d\u4ef6\u7684\u8a18\u9304\u90fd\u88ab\u522a\u9664\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8truncate-table-PHTjUVNmhY\">\u4f7f\u7528TRUNCATE TABLE<\/h2>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u6574\u500b\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff0cTRUNCATE TABLE\u662f\u4e00\u500b\u66f4\u9ad8\u6548\u7684\u9078\u64c7\u3002\u9019\u500b\u547d\u4ee4\u6703\u522a\u9664\u8868\u4e2d\u7684\u6240\u6709\u884c\uff0c\u4f46\u4e0d\u6703\u8a18\u9304\u6bcf\u4e00\u884c\u7684\u522a\u9664\u64cd\u4f5c\uff0c\u56e0\u6b64\u901f\u5ea6\u66f4\u5feb\u3002\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>TRUNCATE TABLE \u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>TRUNCATE TABLE Users;<\/code><\/pre>\n<h3 id=\"truncate%e7%9a%84%e9%99%90%e5%88%b6-PHTjUVNmhY\">TRUNCATE\u7684\u9650\u5236<\/h3>\n<ul>\n<li>TRUNCATE TABLE\u4e0d\u80fd\u7528\u65bc\u6709\u5916\u9375\u7d04\u675f\u7684\u8868\u3002<\/li>\n<li>\u9019\u500b\u64cd\u4f5c\u7121\u6cd5\u56de\u6efe\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u4e4b\u524d\u5fc5\u9808\u8b39\u614e\u8003\u616e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-PHTjUVNmhY\">\u4f7f\u7528\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u5c0d\u65bc\u8907\u96dc\u7684\u522a\u9664\u908f\u8f2f\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u3002\u5b58\u5132\u904e\u7a0b\u53ef\u4ee5\u5c01\u88dd\u591a\u500bSQL\u8a9e\u53e5\uff0c\u4e26\u63d0\u4f9b\u66f4\u597d\u7684\u91cd\u7528\u6027\u548c\u7dad\u8b77\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5b58\u5132\u904e\u7a0b\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE PROCEDURE DeleteUsersByAge\n    @Age INT\nAS\nBEGIN\n    DELETE FROM Users WHERE Age &lt; @Age;\nEND;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u53ef\u4ee5\u901a\u904e\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u4f86\u522a\u9664\u7279\u5b9a\u5e74\u9f61\u4ee5\u4e0b\u7684\u7528\u6236\uff1a<\/p>\n<pre><code>EXEC DeleteUsersByAge @Age = 18;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PHTjUVNmhY\">\u7e3d\u7d50<\/h2>\n<p>\u5728SQL Server 2008\u4e2d\uff0c\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5\u591a\u7a2e\u591a\u6a23\uff0c\u5305\u62ec\u4f7f\u7528DELETE\u8a9e\u53e5\u3001TOP\u7d50\u5408DELETE\u3001TRUNCATE TABLE\u4ee5\u53ca\u5b58\u5132\u904e\u7a0b\u7b49\u3002\u9078\u64c7\u5408\u9069\u7684\u65b9\u6cd5\u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u9700\u6c42\u548c\u6578\u64da\u91cf\u3002\u5728\u9032\u884c\u6279\u91cf\u522a\u9664\u64cd\u4f5c\u6642\uff0c\u52d9\u5fc5\u8b39\u614e\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u4e1f\u5931\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u7121\u8ad6\u662fSQL Server\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\uff0cServer.HK\u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server 2008\u4e2d\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\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-138353","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138353","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=138353"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138353\/revisions"}],"predecessor-version":[{"id":138354,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/138353\/revisions\/138354"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=138353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=138353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=138353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}