{"id":139660,"date":"2024-10-31T19:35:20","date_gmt":"2024-10-31T11:35:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/139660\/"},"modified":"2024-10-31T19:35:21","modified_gmt":"2024-10-31T11:35:21","slug":"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%bd%bf%e7%94%a8%e5%be%aa%e7%92%b0%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/139660\/","title":{"rendered":"SQL SERVER\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u904e\u7a0b\u4f7f\u7528\u5faa\u74b0\u8a9e\u53e5"},"content":{"rendered":"<h1 id=\"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%bd%bf%e7%94%a8%e5%be%aa%e7%92%b0%e8%aa%9e%e5%8f%a5-KHHWxnwMYO\">SQL SERVER\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u904e\u7a0b\u4f7f\u7528\u5faa\u74b0\u8a9e\u53e5<\/h1>\n<p>\u5728SQL Server\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7a2e\u975e\u5e38\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u57f7\u884c\u4e00\u7cfb\u5217\u7684SQL\u8a9e\u53e5\u3002\u5b58\u5132\u904e\u7a0b\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u5faa\u74b0\u8a9e\u53e5\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u7684\u89d2\u8272\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u91cd\u8907\u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\u6642\u3002<\/p>\n<h2 id=\"%e5%be%aa%e7%92%b0%e8%aa%9e%e5%8f%a5%e7%9a%84%e9%a1%9e%e5%9e%8b-KHHWxnwMYO\">\u5faa\u74b0\u8a9e\u53e5\u7684\u985e\u578b<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u4e3b\u8981\u6709\u4e09\u7a2e\u5faa\u74b0\u8a9e\u53e5\u53ef\u4f9b\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li><strong id=\"while%e5%be%aa%e7%92%b0-KHHWxnwMYO\">WHILE\u5faa\u74b0<\/strong><\/li>\n<li><strong id=\"for%e5%be%aa%e7%92%b0-KHHWxnwMYO\">FOR\u5faa\u74b0<\/strong><\/li>\n<li><strong id=\"cursor%e5%be%aa%e7%92%b0-KHHWxnwMYO\">CURSOR\u5faa\u74b0<\/strong><\/li>\n<\/ul>\n<h3 id=\"while%e5%be%aa%e7%92%b0-KHHWxnwMYO\">WHILE\u5faa\u74b0<\/h3>\n<p>WHILE\u5faa\u74b0\u662f\u6700\u5e38\u7528\u7684\u5faa\u74b0\u8a9e\u53e5\u4e4b\u4e00\u3002\u5b83\u6703\u5728\u689d\u4ef6\u70ba\u771f\u6642\u91cd\u8907\u57f7\u884c\u4e00\u6bb5\u4ee3\u78bc\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528WHILE\u5faa\u74b0\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nCREATE PROCEDURE ExampleWhileLoop\nAS\nBEGIN\n    DECLARE @Counter INT = 1;\n\n    WHILE @Counter &lt;= 10\n    BEGIN\n        PRINT 'Counter value is: ' + CAST(@Counter AS VARCHAR);\n        SET @Counter = @Counter + 1;\n    END\nEND\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u6703\u6253\u5370\u51fa\u8a08\u6578\u5668\u7684\u503c\uff0c\u76f4\u5230\u8a08\u6578\u5668\u9054\u523010\u3002<\/p>\n<h3 id=\"for%e5%be%aa%e7%92%b0-KHHWxnwMYO\">FOR\u5faa\u74b0<\/h3>\n<p>\u96d6\u7136SQL Server\u4e0d\u76f4\u63a5\u652f\u6301FOR\u5faa\u74b0\uff0c\u4f46\u53ef\u4ee5\u901a\u904eWHILE\u5faa\u74b0\u4f86\u6a21\u64ecFOR\u5faa\u74b0\u7684\u884c\u70ba\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u6a21\u64ecFOR\u5faa\u74b0\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nCREATE PROCEDURE ExampleForLoop\nAS\nBEGIN\n    DECLARE @Counter INT = 1;\n    DECLARE @Max INT = 10;\n\n    WHILE @Counter &lt;= @Max\n    BEGIN\n        PRINT 'Counter value is: ' + CAST(@Counter AS VARCHAR);\n        SET @Counter = @Counter + 1;\n    END\nEND\n<\/code><\/pre>\n<h3 id=\"cursor%e5%be%aa%e7%92%b0-KHHWxnwMYO\">CURSOR\u5faa\u74b0<\/h3>\n<p>CURSOR\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7528\u65bc\u9010\u884c\u8655\u7406\u67e5\u8a62\u7d50\u679c\u96c6\u3002\u4f7f\u7528CURSOR\u6642\uff0c\u53ef\u4ee5\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u9032\u884c\u66f4\u8907\u96dc\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528CURSOR\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nCREATE PROCEDURE ExampleCursor\nAS\nBEGIN\n    DECLARE @Name VARCHAR(50);\n    DECLARE NameCursor CURSOR FOR\n    SELECT Name FROM Employees;\n\n    OPEN NameCursor;\n    FETCH NEXT FROM NameCursor INTO @Name;\n\n    WHILE @@FETCH_STATUS = 0\n    BEGIN\n        PRINT 'Employee Name: ' + @Name;\n        FETCH NEXT FROM NameCursor INTO @Name;\n    END\n\n    CLOSE NameCursor;\n    DEALLOCATE NameCursor;\nEND\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u6703\u904d\u6b77Employees\u8868\u4e2d\u7684\u6240\u6709\u54e1\u5de5\u59d3\u540d\u4e26\u6253\u5370\u51fa\u4f86\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%be%aa%e7%92%b0%e8%aa%9e%e5%8f%a5%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-KHHWxnwMYO\">\u4f7f\u7528\u5faa\u74b0\u8a9e\u53e5\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u5faa\u74b0\u8a9e\u53e5\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u907f\u514d\u7121\u9650\u5faa\u74b0\uff1a\u78ba\u4fdd\u5faa\u74b0\u689d\u4ef6\u6700\u7d42\u6703\u8b8a\u70ba\u5047\uff0c\u5426\u5247\u6703\u5c0e\u81f4\u7121\u9650\u5faa\u74b0\u3002<\/li>\n<li>\u6027\u80fd\u8003\u91cf\uff1a\u904e\u591a\u7684\u5faa\u74b0\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/li>\n<li>\u4f7f\u7528SET NOCOUNT ON\uff1a\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528SET NOCOUNT ON\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u56e0\u70ba\u5b83\u6703\u9632\u6b62\u8fd4\u56de\u884c\u6578\u7684\u6d88\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KHHWxnwMYO\">\u7e3d\u7d50<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u7d50\u5408\u5faa\u74b0\u8a9e\u53e5\u53ef\u4ee5\u5be6\u73fe\u5f37\u5927\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002\u7121\u8ad6\u662f\u4f7f\u7528WHILE\u5faa\u74b0\u3001\u6a21\u64ecFOR\u5faa\u74b0\uff0c\u9084\u662f\u5229\u7528CURSOR\u9032\u884c\u9010\u884c\u8655\u7406\uff0c\u9019\u4e9b\u6280\u8853\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u5faa\u74b0\u8a9e\u53e5\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684SQL Server\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728SQL Server\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u5faa\u74b0\u8a9e\u53e5\u7de8\u5beb\u5b58\u5132\u904e\u7a0b\uff0c\u4ee5\u63d0\u9ad8\u6578\u64da\u8655\u7406\u6548\u7387\u548c\u9748\u6d3b\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-139660","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139660","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=139660"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139660\/revisions"}],"predecessor-version":[{"id":139661,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139660\/revisions\/139661"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=139660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=139660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=139660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}