{"id":67171,"date":"2024-10-14T22:55:17","date_gmt":"2024-10-14T14:55:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/67171\/"},"modified":"2024-10-14T22:55:17","modified_gmt":"2024-10-14T14:55:17","slug":"mssql%e7%94%a2%e7%94%9f12%e4%bd%8d%e9%9a%a8%e6%a9%9f%e6%95%b8%e7%9a%84%e6%8a%80%e5%b7%a7%ef%bc%88mssql%e9%9a%a8%e6%a9%9f%e6%95%b812%e4%bd%8d%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/67171\/","title":{"rendered":"MSSQL\u7522\u751f12\u4f4d\u96a8\u6a5f\u6578\u7684\u6280\u5de7\uff08mssql\u96a8\u6a5f\u657812\u4f4d\uff09"},"content":{"rendered":"

MSSQL\u7522\u751f12\u4f4d\u96a8\u6a5f\u6578\u7684\u6280\u5de7\uff08mssql\u96a8\u6a5f\u657812\u4f4d\uff09<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u96a8\u6a5f\u6578\u7684\u751f\u6210\u5e38\u5e38\u7528\u65bc\u591a\u7a2e\u7528\u9014\uff0c\u4f8b\u5982\u552f\u4e00\u8b58\u5225\u78bc\u3001\u5bc6\u78bc\u751f\u6210\u6216\u6e2c\u8a66\u6578\u64da\u7684\u5275\u5efa\u3002\u5728Microsoft SQL Server\uff08MSSQL\uff09\u4e2d\uff0c\u751f\u621012\u4f4d\u96a8\u6a5f\u6578\u7684\u6280\u5de7\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u66f4\u6709\u6548\u5730\u8655\u7406\u9019\u4e9b\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728MSSQL\u4e2d\u751f\u621012\u4f4d\u96a8\u6a5f\u6578\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n

\u96a8\u6a5f\u6578\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u96a8\u6a5f\u6578\u662f\u6307\u5728\u4e00\u5b9a\u7bc4\u570d\u5167\u96a8\u6a5f\u751f\u6210\u7684\u6578\u5b57\u3002MSSQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u751f\u6210\u96a8\u6a5f\u6578\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662f\u4f7f\u7528\u5167\u5efa\u7684 NEWID()<\/code> \u51fd\u6578\u548c RAND()<\/code> \u51fd\u6578\u3002\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u751f\u6210\u96a8\u6a5f\u7684\u6578\u5b57\u6216\u5b57\u6bcd\uff0c\u4e26\u4e14\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9032\u884c\u683c\u5f0f\u5316\u3002<\/p>\n

\u4f7f\u7528NEWID()\u751f\u6210\u96a8\u6a5f\u6578<\/h2>\n

NEWID()<\/code> \u51fd\u6578\u751f\u6210\u4e00\u500b\u5168\u5c40\u552f\u4e00\u6a19\u8b58\u7b26\uff08GUID\uff09\uff0c\u9019\u662f\u4e00\u500b128\u4f4d\u7684\u6578\u5b57\u3002\u96d6\u7136\u9019\u500b\u6578\u5b57\u7684\u9577\u5ea6\u8d85\u904e12\u4f4d\uff0c\u4f46\u6211\u5011\u53ef\u4ee5\u5f9e\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u90e8\u5206\u4f86\u751f\u621012\u4f4d\u96a8\u6a5f\u6578\u3002<\/p>\n

DECLARE @RandomID VARCHAR(12);\nSET @RandomID = SUBSTRING(CONVERT(VARCHAR(36), NEWID()), 1, 12);\nSELECT @RandomID AS RandomNumber;<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 NEWID()<\/code> \u751f\u6210\u4e00\u500bGUID\uff0c\u7136\u5f8c\u4f7f\u7528 SUBSTRING()<\/code> \u51fd\u6578\u63d0\u53d6\u524d12\u500b\u5b57\u7b26\u3002\u9019\u6a23\u751f\u6210\u7684\u96a8\u6a5f\u6578\u5b57\u662f\u76f8\u5c0d\u7368\u7279\u7684\uff0c\u9069\u5408\u7528\u4f5c\u8b58\u5225\u78bc\u3002<\/p>\n
\u4f7f\u7528RAND()\u751f\u6210\u96a8\u6a5f\u6578<\/h2>\n
\u53e6\u4e00\u7a2e\u751f\u6210\u96a8\u6a5f\u6578\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 RAND()<\/code> \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u751f\u6210\u4e00\u500b\u4ecb\u65bc0\u548c1\u4e4b\u9593\u7684\u96a8\u6a5f\u6d6e\u9ede\u6578\u3002\u6211\u5011\u53ef\u4ee5\u901a\u904e\u4e58\u4ee5\u4e00\u500b\u9069\u7576\u7684\u6578\u5b57\u4f86\u751f\u6210\u6240\u9700\u7684\u4f4d\u6578\u3002<\/p>\n
DECLARE @RandomNumber INT;\nSET @RandomNumber = CAST(RAND() * 1000000000000 AS INT);\nSELECT RIGHT('000000000000' + CAST(@RandomNumber AS VARCHAR(12)), 12) AS RandomNumber;<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u751f\u6210\u4e00\u500b\u96a8\u6a5f\u6d6e\u9ede\u6578\uff0c\u7136\u5f8c\u5c07\u5176\u4e58\u4ee5 1000000000000<\/code> \u4ee5\u7372\u5f97\u4e00\u500b12\u4f4d\u7684\u6574\u6578\u3002\u6700\u5f8c\uff0c\u6211\u5011\u4f7f\u7528 RIGHT()<\/code> \u51fd\u6578\u78ba\u4fdd\u751f\u6210\u7684\u6578\u5b57\u59cb\u7d42\u70ba12\u4f4d\uff0c\u4e26\u5728\u5fc5\u8981\u6642\u586b\u5145\u524d\u5c0e\u96f6\u3002<\/p>\n
\u8003\u616e\u96a8\u6a5f\u6578\u7684\u552f\u4e00\u6027<\/h2>\n
\u5728\u751f\u6210\u96a8\u6a5f\u6578\u6642\uff0c\u552f\u4e00\u6027\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002\u96d6\u7136\u4e0a\u8ff0\u65b9\u6cd5\u53ef\u4ee5\u751f\u6210\u96a8\u6a5f\u6578\uff0c\u4f46\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u4ecd\u7136\u6709\u53ef\u80fd\u7522\u751f\u91cd\u8907\u7684\u6578\u5b57\u3002\u56e0\u6b64\uff0c\u5efa\u8b70\u5728\u751f\u6210\u96a8\u6a5f\u6578\u5f8c\uff0c\u5c07\u5176\u8207\u6578\u64da\u5eab\u4e2d\u7684\u73fe\u6709\u6578\u64da\u9032\u884c\u6bd4\u5c0d\uff0c\u4ee5\u78ba\u4fdd\u5176\u552f\u4e00\u6027\u3002<\/p>\n
DECLARE @RandomID VARCHAR(12);\nDECLARE @Count INT;\n\nSET @Count = 1;\n\nWHILE @Count <= 10\nBEGIN\n    SET @RandomID = SUBSTRING(CONVERT(VARCHAR(36), NEWID()), 1, 12);\n    \n    IF NOT EXISTS (SELECT 1 FROM YourTable WHERE YourColumn = @RandomID)\n    BEGIN\n        INSERT INTO YourTable (YourColumn) VALUES (@RandomID);\n        BREAK;\n    END\n    \n    SET @Count = @Count + 1;\nEND;<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u793a\u7bc4\u4e86\u5982\u4f55\u5728\u751f\u6210\u96a8\u6a5f\u6578\u5f8c\u6aa2\u67e5\u5176\u552f\u4e00\u6027\u3002\u5982\u679c\u751f\u6210\u7684\u96a8\u6a5f\u6578\u5df2\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\uff0c\u5247\u6703\u91cd\u65b0\u751f\u6210\uff0c\u76f4\u5230\u627e\u5230\u4e00\u500b\u552f\u4e00\u7684\u6578\u5b57\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728MSSQL\u4e2d\u751f\u621012\u4f4d\u96a8\u6a5f\u6578\u7684\u65b9\u6cd5\u6709\u591a\u7a2e\uff0c\u7121\u8ad6\u662f\u4f7f\u7528 NEWID()<\/code> \u9084\u662f RAND()<\/code> \u51fd\u6578\uff0c\u90fd\u80fd\u5920\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u958b\u767c\u8005\u5728\u9078\u64c7\u65b9\u6cd5\u6642\uff0c\u61c9\u8003\u616e\u5230\u96a8\u6a5f\u6578\u7684\u552f\u4e00\u6027\u548c\u61c9\u7528\u5834\u666f\u3002\u900f\u904e\u9019\u4e9b\u6280\u5de7\uff0c\u60a8\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u96a8\u6a5f\u6578\u751f\u6210\u9700\u6c42\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u958b\u767c\uff0c\u6211\u5011\u7684 \u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22MSSQL\u4e2d\u751f\u621012\u4f4d\u96a8\u6a5f\u6578\u7684\u6280\u5de7\uff0c\u7c21\u55ae\u6613\u7528\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u6eff\u8db3\u5404\u7a2e\u61c9\u7528\u9700\u6c42\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-67171","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/67171","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=67171"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/67171\/revisions"}],"predecessor-version":[{"id":67172,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/67171\/revisions\/67172"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=67171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=67171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=67171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}