{"id":152143,"date":"2024-11-01T20:28:49","date_gmt":"2024-11-01T12:28:49","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152143\/"},"modified":"2024-11-01T20:28:50","modified_gmt":"2024-11-01T12:28:50","slug":"%e8%a1%a8sql-server%e6%9f%a5%e8%a9%a2-%e5%bf%ab%e9%80%9f%e7%8d%b2%e5%be%97%e6%9c%89%e7%94%a8%e6%95%b8%e6%93%9a%ef%bc%88sqlserver%e6%9f%a5%e8%a9%a2%e5%88%97%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152143\/","title":{"rendered":"\u8868SQL Server\u67e5\u8a62\u2014\u5feb\u901f\u7372\u5f97\u6709\u7528\u6578\u64da\uff08sqlserver\u67e5\u8a62\u5217\uff09"},"content":{"rendered":"

\u8868SQL Server\u67e5\u8a62\u2014\u5feb\u901f\u7372\u5f97\u6709\u7528\u6578\u64da<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cSQL Server\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u74b0\u5883\u4e2d\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0cSQL Server\u90fd\u80fd\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u7372\u53d6\u548c\u5206\u6790\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904eSQL\u67e5\u8a62\u4f86\u5feb\u901f\u7372\u5f97\u6709\u7528\u7684\u6578\u64da\uff0c\u7279\u5225\u662f\u91dd\u5c0d\u67e5\u8a62\u5217\u7684\u6280\u5de7\u548c\u65b9\u6cd5\u3002<\/p>\n

SQL Server\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u7ba1\u7406\u548c\u64cd\u4f5c\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u6a19\u6e96\u8a9e\u8a00\u3002\u5728SQL Server\u4e2d\uff0c\u67e5\u8a62\u662f\u7528\u4f86\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u7684\u4e3b\u8981\u624b\u6bb5\u3002\u901a\u904e\u7de8\u5beb\u67e5\u8a62\u8a9e\u53e5\uff0c\u7528\u6236\u53ef\u4ee5\u9078\u64c7\u7279\u5b9a\u7684\u5217\u3001\u904e\u6ffe\u6578\u64da\u3001\u6392\u5e8f\u7d50\u679c\u7b49\u3002<\/p>\n

\u9078\u64c7\u67e5\u8a62\u5217<\/h2>\n

\u5728SQL Server\u4e2d\uff0c\u9078\u64c7\u7279\u5b9a\u7684\u5217\u662f\u67e5\u8a62\u7684\u57fa\u672c\u64cd\u4f5c\u4e4b\u4e00\u3002\u4f7f\u7528SELECT\u8a9e\u53e5\u53ef\u4ee5\u6307\u5b9a\u8981\u6aa2\u7d22\u7684\u5217\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cCustomers\u201d\u7684\u8868\uff0c\u5305\u542b\u201cCustomerID\u201d\u3001\u201cCustomerName\u201d\u548c\u201cContactNumber\u201d\u4e09\u500b\u5217\uff0c\u4ee5\u4e0b\u662f\u67e5\u8a62\u6240\u6709\u5ba2\u6236\u540d\u7a31\u7684SQL\u8a9e\u53e5\uff1a<\/p>\n

SELECT CustomerName FROM Customers;<\/code><\/pre>\n
\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u201cCustomers\u201d\u8868\u4e2d\u6240\u6709\u5ba2\u6236\u7684\u540d\u7a31\u3002\u5982\u679c\u9700\u8981\u540c\u6642\u6aa2\u7d22\u591a\u500b\u5217\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
SELECT CustomerID, CustomerName, ContactNumber FROM Customers;<\/code><\/pre>\n
\u4f7f\u7528WHERE\u5b50\u53e5\u904e\u6ffe\u6578\u64da<\/h2>\n
\u5728\u67e5\u8a62\u4e2d\uff0c\u4f7f\u7528WHERE\u5b50\u53e5\u53ef\u4ee5\u904e\u6ffe\u51fa\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u53ea\u60f3\u67e5\u8a62\u4f86\u81ea\u201c\u9999\u6e2f\u201d\u7684\u5ba2\u6236\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
SELECT CustomerName FROM Customers WHERE City = '\u9999\u6e2f';<\/code><\/pre>\n
\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u50c5\u8fd4\u56de\u5c45\u4f4f\u5728\u9999\u6e2f\u7684\u5ba2\u6236\u540d\u7a31\u3002WHERE\u5b50\u53e5\u652f\u6301\u591a\u7a2e\u689d\u4ef6\u904b\u7b97\u7b26\uff0c\u5982=\u3001!=\u3001>\u3001<\u7b49\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528AND\u548cOR\u4f86\u7d44\u5408\u591a\u500b\u689d\u4ef6\u3002<\/p>\n
\u6392\u5e8f\u67e5\u8a62\u7d50\u679c<\/h2>\n
\u5728\u7372\u53d6\u6578\u64da\u5f8c\uff0c\u53ef\u80fd\u9700\u8981\u5c0d\u7d50\u679c\u9032\u884c\u6392\u5e8f\u3002\u4f7f\u7528ORDER BY\u5b50\u53e5\u53ef\u4ee5\u6309\u7167\u6307\u5b9a\u7684\u5217\u9032\u884c\u5347\u5e8f\u6216\u964d\u5e8f\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u6309\u5ba2\u6236\u540d\u7a31\u7684\u5b57\u6bcd\u9806\u5e8f\u6392\u5217\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n
SELECT CustomerName FROM Customers ORDER BY CustomerName ASC;<\/code><\/pre>\n
\u5982\u679c\u9700\u8981\u6309\u5ba2\u6236ID\u964d\u5e8f\u6392\u5217\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
SELECT CustomerName FROM Customers ORDER BY CustomerID DESC;<\/code><\/pre>\n
\u805a\u5408\u51fd\u6578\u7684\u4f7f\u7528<\/h2>\n
SQL Server\u9084\u63d0\u4f9b\u4e86\u591a\u7a2e\u805a\u5408\u51fd\u6578\uff0c\u5982COUNT\u3001SUM\u3001AVG\u7b49\uff0c\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u7372\u5f97\u6709\u7528\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u8a08\u7b97\u201cCustomers\u201d\u8868\u4e2d\u5ba2\u6236\u7684\u7e3d\u6578\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n
SELECT COUNT(*) AS TotalCustomers FROM Customers;<\/code><\/pre>\n
\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u5ba2\u6236\u7684\u7e3d\u6578\uff0c\u4e26\u5c07\u7d50\u679c\u547d\u540d\u70ba\u201cTotalCustomers\u201d\u3002<\/p>\n
\u5c0f\u7d50<\/h2>\n
\u901a\u904e\u4f7f\u7528SQL Server\u7684\u67e5\u8a62\u529f\u80fd\uff0c\u7528\u6236\u53ef\u4ee5\u5feb\u901f\u7372\u5f97\u6240\u9700\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u9078\u64c7\u7279\u5b9a\u7684\u5217\u3001\u904e\u6ffe\u6578\u64da\u3001\u6392\u5e8f\u7d50\u679c\u9084\u662f\u4f7f\u7528\u805a\u5408\u51fd\u6578\uff0c\u9019\u4e9b\u64cd\u4f5c\u90fd\u80fd\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u7684\u67e5\u8a62\u6280\u5de7\uff0c\u5c07\u4f7f\u60a8\u5728\u6578\u64da\u8655\u7406\u4e0a\u66f4\u52a0\u5f97\u5fc3\u61c9\u624b\u3002<\/p>\n
\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5229\u7528\u9999\u6e2fVPS<\/a><\/strong>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5feb\u901f\u5b78\u7fd2\u5982\u4f55\u5728SQL Server\u4e2d\u67e5\u8a62\u5217\uff0c\u8f15\u9b06\u7372\u5f97\u6709\u7528\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\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-152143","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152143","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=152143"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152143\/revisions"}],"predecessor-version":[{"id":152144,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152143\/revisions\/152144"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}