{"id":139650,"date":"2024-10-31T19:30:30","date_gmt":"2024-10-31T11:30:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/139650\/"},"modified":"2024-10-31T19:30:30","modified_gmt":"2024-10-31T11:30:30","slug":"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e3%80%81%e7%8d%b2%e5%be%97%e5%89%9b%e6%8f%92%e5%85%a5%e6%96%b0%e8%a8%98%e9%8c%84%e7%9a%84%e8%87%aa%e5%8b%95id%e8%99%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/139650\/","title":{"rendered":"SQL Server\u6578\u64da\u5eab\u4e2d\u3001\u7372\u5f97\u525b\u63d2\u5165\u65b0\u8a18\u9304\u7684\u81ea\u52d5ID\u865f"},"content":{"rendered":"<h1 id=\"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e3%80%81%e7%8d%b2%e5%be%97%e5%89%9b%e6%8f%92%e5%85%a5%e6%96%b0%e8%a8%98%e9%8c%84%e7%9a%84%e8%87%aa%e5%8b%95id%e8%99%9f-FXQxpRdMVg\">SQL Server\u6578\u64da\u5eab\u4e2d\u3001\u7372\u5f97\u525b\u63d2\u5165\u65b0\u8a18\u9304\u7684\u81ea\u52d5ID\u865f<\/h1>\n<p>\u5728\u4f7f\u7528SQL Server\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u7d93\u5e38\u9700\u8981\u63d2\u5165\u65b0\u8a18\u9304\u4e26\u7372\u53d6\u8a72\u8a18\u9304\u7684\u81ea\u52d5\u751f\u6210ID\u865f\u3002\u9019\u5728\u8a31\u591a\u61c9\u7528\u5834\u666f\u4e2d\u90fd\u662f\u4e00\u500b\u91cd\u8981\u7684\u9700\u6c42\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u8ffd\u8e64\u6216\u95dc\u806f\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728SQL Server\u4e2d\u7372\u5f97\u525b\u63d2\u5165\u65b0\u8a18\u9304\u7684\u81ea\u52d5ID\u865f\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e8%87%aa%e5%8b%95id%e8%99%9f%e7%9a%84%e6%a6%82%e5%bf%b5-FXQxpRdMVg\">\u81ea\u52d5ID\u865f\u7684\u6982\u5ff5<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u81ea\u52d5ID\u865f\u901a\u5e38\u662f\u901a\u904e\u8a2d\u7f6e\u67d0\u500b\u5217\u70ba\u81ea\u589e\uff08IDENTITY\uff09\u4f86\u5be6\u73fe\u7684\u3002\u9019\u610f\u5473\u8457\u6bcf\u7576\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\u6642\uff0c\u8a72\u5217\u7684\u503c\u6703\u81ea\u52d5\u589e\u52a0\uff0c\u7121\u9700\u624b\u52d5\u6307\u5b9a\u3002\u9019\u5c0d\u65bc\u4e3b\u9375\uff08Primary Key\uff09\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u78ba\u4fdd\u4e86\u6bcf\u689d\u8a18\u9304\u7684\u552f\u4e00\u6027\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e8%87%aa%e5%a2%9e%e5%88%97-FXQxpRdMVg\">\u5982\u4f55\u8a2d\u7f6e\u81ea\u589e\u5217<\/h2>\n<p>\u5728\u5275\u5efa\u8868\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528IDENTITY\u5c6c\u6027\u4f86\u8a2d\u7f6e\u81ea\u589e\u5217\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE Users (\n    UserID INT IDENTITY(1,1) PRIMARY KEY,\n    UserName NVARCHAR(50),\n    Email NVARCHAR(100)\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cUserID\u5217\u88ab\u8a2d\u7f6e\u70ba\u81ea\u589e\uff0c\u521d\u59cb\u503c\u70ba1\uff0c\u6bcf\u6b21\u63d2\u5165\u65b0\u8a18\u9304\u6642\u81ea\u52d5\u589e\u52a01\u3002<\/p>\n<h2 id=\"%e6%8f%92%e5%85%a5%e6%96%b0%e8%a8%98%e9%8c%84%e4%b8%a6%e7%8d%b2%e5%8f%96%e8%87%aa%e5%8b%95id%e8%99%9f-FXQxpRdMVg\">\u63d2\u5165\u65b0\u8a18\u9304\u4e26\u7372\u53d6\u81ea\u52d5ID\u865f<\/h2>\n<p>\u8981\u63d2\u5165\u65b0\u8a18\u9304\u4e26\u7372\u53d6\u81ea\u52d5\u751f\u6210\u7684ID\u865f\uff0c\u53ef\u4ee5\u4f7f\u7528SQL Server\u7684OUTPUT\u5b50\u53e5\u3002\u9019\u662f\u4e00\u500b\u975e\u5e38\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u56e0\u70ba\u5b83\u5141\u8a31\u5728\u63d2\u5165\u64cd\u4f5c\u4e2d\u540c\u6642\u7372\u53d6\u65b0\u751f\u6210\u7684ID\u865f\u3002\u4ee5\u4e0b\u662f\u5177\u9ad4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE @NewUserID INT;\n\nINSERT INTO Users (UserName, Email)\nOUTPUT INSERTED.UserID INTO @NewUserID\nVALUES ('JohnDoe', 'john.doe@example.com');\n\nSELECT @NewUserID AS NewUserID;<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u8072\u660e\u4e86\u4e00\u500b\u8b8a\u91cf@NewUserID\u4f86\u5b58\u5132\u65b0\u63d2\u5165\u8a18\u9304\u7684ID\u865f\u3002\u7136\u5f8c\uff0c\u6211\u5011\u4f7f\u7528INSERT\u8a9e\u53e5\u63d2\u5165\u65b0\u7528\u6236\u7684\u6578\u64da\uff0c\u4e26\u901a\u904eOUTPUT\u5b50\u53e5\u5c07INSERTED.UserID\u7684\u503c\u5b58\u5165@NewUserID\u8b8a\u91cf\u4e2d\u3002\u6700\u5f8c\uff0c\u6211\u5011\u9078\u64c7\u8a72\u8b8a\u91cf\u4ee5\u986f\u793a\u65b0\u7528\u6236\u7684ID\u865f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8scope_identity%e5%87%bd%e6%95%b8-FXQxpRdMVg\">\u4f7f\u7528SCOPE_IDENTITY()\u51fd\u6578<\/h2>\n<p>\u53e6\u4e00\u7a2e\u7372\u53d6\u525b\u63d2\u5165\u8a18\u9304\u7684\u81ea\u52d5ID\u865f\u7684\u65b9\u6cd5\u662f\u4f7f\u7528SCOPE_IDENTITY()\u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u8fd4\u56de\u7576\u524d\u7bc4\u570d\u5167\u6700\u5f8c\u63d2\u5165\u7684\u81ea\u589e\u5217\u7684\u503c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SCOPE_IDENTITY()\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO Users (UserName, Email)\nVALUES ('JaneDoe', 'jane.doe@example.com');\n\nSELECT SCOPE_IDENTITY() AS NewUserID;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5728\u63d2\u5165\u65b0\u7528\u6236\u5f8c\uff0c\u7acb\u5373\u8abf\u7528SCOPE_IDENTITY()\u4f86\u7372\u53d6\u65b0\u63d2\u5165\u8a18\u9304\u7684ID\u865f\u3002\u9019\u7a2e\u65b9\u6cd5\u7c21\u55ae\u4e14\u6709\u6548\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cSCOPE_IDENTITY()\u50c5\u8fd4\u56de\u7576\u524d\u7bc4\u570d\u5167\u7684ID\u865f\uff0c\u56e0\u6b64\u5728\u591a\u7528\u6236\u74b0\u5883\u4e2d\u4e0d\u6703\u53d7\u5230\u5176\u4ed6\u63d2\u5165\u64cd\u4f5c\u7684\u5f71\u97ff\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FXQxpRdMVg\">\u7e3d\u7d50<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u7372\u53d6\u525b\u63d2\u5165\u65b0\u8a18\u9304\u7684\u81ea\u52d5ID\u865f\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u4e00\u500b\u5e38\u898b\u9700\u6c42\u3002\u901a\u904e\u8a2d\u7f6e\u81ea\u589e\u5217\u548c\u4f7f\u7528OUTPUT\u5b50\u53e5\u6216SCOPE_IDENTITY()\u51fd\u6578\uff0c\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\uff0c\u9084\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u5c07\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u53ef\u9760\u7684\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728SQL Server\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u525b\u63d2\u5165\u65b0\u8a18\u9304\u7684\u81ea\u52d5ID\u865f\uff0c\u78ba\u4fdd\u6578\u64da\u64cd\u4f5c\u7684\u6e96\u78ba\u6027\u8207\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-139650","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139650","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=139650"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139650\/revisions"}],"predecessor-version":[{"id":139651,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139650\/revisions\/139651"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=139650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=139650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=139650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}