{"id":135937,"date":"2024-10-31T10:46:25","date_gmt":"2024-10-31T02:46:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/135937\/"},"modified":"2024-10-31T10:46:26","modified_gmt":"2024-10-31T02:46:26","slug":"sql-server-2008-merge%e8%aa%9e%e5%8f%a5%e4%b9%8b%e5%8a%9f%e8%83%bd%ef%bc%8coutput","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/135937\/","title":{"rendered":"SQL Server 2008 Merge\u8a9e\u53e5\u4e4b\u529f\u80fd\uff0cOUTPUT"},"content":{"rendered":"<h1 id=\"sql-server-2008-merge%e8%aa%9e%e5%8f%a5%e4%b9%8b%e5%8a%9f%e8%83%bd%ef%bc%8coutput-KwryRPJJVk\">SQL Server 2008 Merge\u8a9e\u53e5\u4e4b\u529f\u80fd\uff0cOUTPUT<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL Server 2008 \u63d0\u4f9b\u4e86\u8a31\u591a\u5f37\u5927\u7684\u529f\u80fd\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f <code>MERGE<\/code> \u8a9e\u53e5\u3002\u9019\u500b\u8a9e\u53e5\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5728\u55ae\u4e00\u64cd\u4f5c\u4e2d\u540c\u6642\u57f7\u884c\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u6839\u64da\u4f86\u6e90\u8cc7\u6599\u66f4\u65b0\u76ee\u6a19\u8cc7\u6599\u7684\u60c5\u6cc1\u7279\u5225\u6709\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>MERGE<\/code> \u8a9e\u53e5\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5176 <code>OUTPUT<\/code> \u5b50\u53e5\u7684\u4f7f\u7528\u3002<\/p>\n<h2 id=\"merge-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%b5%90%e6%a7%8b-KwryRPJJVk\">MERGE \u8a9e\u53e5\u7684\u57fa\u672c\u7d50\u69cb<\/h2>\n<p><code>MERGE<\/code> \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>MERGE INTO target_table AS target\nUSING source_table AS source\nON target.key_column = source.key_column\nWHEN MATCHED THEN\n    UPDATE SET target.column1 = source.column1, target.column2 = source.column2\nWHEN NOT MATCHED THEN\n    INSERT (column1, column2) VALUES (source.column1, source.column2)\nWHEN NOT MATCHED BY SOURCE THEN\n    DELETE;<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u8a9e\u6cd5\u4e2d\uff0c<code>target_table<\/code> \u662f\u76ee\u6a19\u8cc7\u6599\u8868\uff0c<code>source_table<\/code> \u662f\u4f86\u6e90\u8cc7\u6599\u8868\u3002<code>ON<\/code> \u5b50\u53e5\u7528\u65bc\u6307\u5b9a\u5339\u914d\u7684\u689d\u4ef6\uff0c\u800c <code>WHEN<\/code> \u5b50\u53e5\u5247\u5b9a\u7fa9\u4e86\u5728\u4e0d\u540c\u60c5\u6cc1\u4e0b\u61c9\u57f7\u884c\u7684\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"output-%e5%ad%90%e5%8f%a5%e7%9a%84%e5%8a%9f%e8%83%bd-KwryRPJJVk\">OUTPUT \u5b50\u53e5\u7684\u529f\u80fd<\/h2>\n<p><code>OUTPUT<\/code> \u5b50\u53e5\u5141\u8a31\u7528\u6236\u5728\u57f7\u884c <code>MERGE<\/code> \u64cd\u4f5c\u6642\uff0c\u6355\u7372\u53d7\u5f71\u97ff\u7684\u884c\u7684\u8cc7\u8a0a\u3002\u9019\u5c0d\u65bc\u9700\u8981\u8ffd\u8e64\u8b8a\u66f4\u6216\u9032\u884c\u65e5\u8a8c\u8a18\u9304\u7684\u60c5\u6cc1\u975e\u5e38\u6709\u7528\u3002<code>OUTPUT<\/code> \u5b50\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>OUTPUT $action, inserted.*, deleted.*<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>$action<\/code> \u6703\u8fd4\u56de\u7576\u524d\u64cd\u4f5c\u7684\u985e\u578b\uff08\u4f8b\u5982 INSERT\u3001UPDATE \u6216 DELETE\uff09\uff0c\u800c <code>inserted.*<\/code> \u548c <code>deleted.*<\/code> \u5247\u5206\u5225\u4ee3\u8868\u63d2\u5165\u548c\u522a\u9664\u7684\u884c\u7684\u5167\u5bb9\u3002<\/p>\n<h3 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8-output-%e5%ad%90%e5%8f%a5-KwryRPJJVk\">\u7bc4\u4f8b\uff1a\u4f7f\u7528 OUTPUT \u5b50\u53e5<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 <code>MERGE<\/code> \u548c <code>OUTPUT<\/code> \u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>MERGE INTO Employees AS target\nUSING (SELECT EmployeeID, Name FROM NewEmployees) AS source\nON target.EmployeeID = source.EmployeeID\nWHEN MATCHED THEN\n    UPDATE SET target.Name = source.Name\nWHEN NOT MATCHED THEN\n    INSERT (EmployeeID, Name) VALUES (source.EmployeeID, source.Name)\nOUTPUT $action, inserted.*, deleted.*;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u7576\u4f86\u6e90\u8cc7\u6599\u8868\u4e2d\u7684\u54e1\u5de5\u8207\u76ee\u6a19\u8cc7\u6599\u8868\u4e2d\u7684\u54e1\u5de5\u5339\u914d\u6642\uff0c\u5c07\u66f4\u65b0\u76ee\u6a19\u8cc7\u6599\u8868\u4e2d\u7684\u59d3\u540d\uff1b\u5982\u679c\u6c92\u6709\u5339\u914d\uff0c\u5247\u63d2\u5165\u65b0\u7684\u54e1\u5de5\u8cc7\u6599\u3002<code>OUTPUT<\/code> \u5b50\u53e5\u5c07\u8fd4\u56de\u6240\u6709\u53d7\u5f71\u97ff\u7684\u884c\u53ca\u5176\u64cd\u4f5c\u985e\u578b\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-output-%e5%ad%90%e5%8f%a5%e7%9a%84%e5%84%aa%e5%8b%a2-KwryRPJJVk\">\u4f7f\u7528 OUTPUT \u5b50\u53e5\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u8ffd\u8e64\u8b8a\u66f4\uff1a<\/strong>\u901a\u904e <code>OUTPUT<\/code> \u5b50\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u8ffd\u8e64\u54ea\u4e9b\u884c\u88ab\u66f4\u65b0\u3001\u63d2\u5165\u6216\u522a\u9664\uff0c\u9019\u5c0d\u65bc\u65e5\u8a8c\u8a18\u9304\u548c\u5be9\u8a08\u975e\u5e38\u91cd\u8981\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6548\u7387\uff1a<\/strong>\u5728\u55ae\u4e00\u64cd\u4f5c\u4e2d\u5b8c\u6210\u591a\u500b\u52d5\u4f5c\uff0c\u6e1b\u5c11\u4e86\u591a\u6b21\u67e5\u8a62\u7684\u9700\u8981\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6027\u80fd\u3002<\/li>\n<li><strong>\u7c21\u5316\u4ee3\u78bc\uff1a<\/strong>\u4f7f\u7528 <code>MERGE<\/code> \u8a9e\u53e5\u53ef\u4ee5\u6e1b\u5c11\u9700\u8981\u7de8\u5beb\u7684 SQL \u8a9e\u53e5\u6578\u91cf\uff0c\u5f9e\u800c\u4f7f\u4ee3\u78bc\u66f4\u7c21\u6f54\u6613\u8b80\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KwryRPJJVk\">\u7e3d\u7d50<\/h2>\n<p>SQL Server 2008 \u7684 <code>MERGE<\/code> \u8a9e\u53e5\u53ca\u5176 <code>OUTPUT<\/code> \u5b50\u53e5\u70ba\u8cc7\u6599\u5eab\u64cd\u4f5c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u9748\u6d3b\u6027\u548c\u6548\u7387\u3002\u901a\u904e\u9019\u4e9b\u529f\u80fd\uff0c\u958b\u767c\u8005\u80fd\u5920\u5728\u55ae\u4e00\u8a9e\u53e5\u4e2d\u57f7\u884c\u591a\u7a2e\u64cd\u4f5c\uff0c\u4e26\u80fd\u5920\u8f15\u9b06\u8ffd\u8e64\u8cc7\u6599\u8b8a\u66f4\u3002\u9019\u4e9b\u7279\u6027\u4f7f\u5f97 <code>MERGE<\/code> \u6210\u70ba\u8655\u7406\u8907\u96dc\u8cc7\u6599\u66f4\u65b0\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u670d\u52d9\u80fd\u5920\u652f\u6301\u5404\u7a2e\u61c9\u7528\uff0c\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0c\u5747\u53ef\u7372\u5f97\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL Server 2008 Merge\u8a9e\u53e5\u7684\u529f\u80fd\uff0c\u63a2\u7d22OUTPUT\u5b50\u53e5\u5982\u4f55\u6709\u6548\u6355\u6349\u5408\u4f75\u64cd\u4f5c\u7684\u7d50\u679c\u8207\u8b8a\u66f4\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-135937","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135937","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=135937"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135937\/revisions"}],"predecessor-version":[{"id":135938,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135937\/revisions\/135938"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=135937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=135937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=135937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}