{"id":139139,"date":"2024-10-31T18:04:00","date_gmt":"2024-10-31T10:04:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/139139\/"},"modified":"2024-10-31T18:04:01","modified_gmt":"2024-10-31T10:04:01","slug":"sql-server%e8%a6%96%e5%9c%96%e7%ae%a1%e7%90%86%e4%b8%ad%e9%9c%80%e8%a6%81%e9%81%b5%e5%ae%88%e7%9a%84%e5%9b%9b%e5%80%8b%e9%99%90%e5%88%b6%e6%a2%9d%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/139139\/","title":{"rendered":"SQL Server\u8996\u5716\u7ba1\u7406\u4e2d\u9700\u8981\u9075\u5b88\u7684\u56db\u500b\u9650\u5236\u689d\u4ef6"},"content":{"rendered":"

SQL Server\u8996\u5716\u7ba1\u7406\u4e2d\u9700\u8981\u9075\u5b88\u7684\u56db\u500b\u9650\u5236\u689d\u4ef6<\/h1>\n

\u5728SQL Server\u4e2d\uff0c\u8996\u5716\u662f\u4e00\u7a2e\u865b\u64ec\u8868\u683c\uff0c\u80fd\u5920\u5f9e\u4e00\u500b\u6216\u591a\u500b\u57fa\u790e\u8868\u4e2d\u9078\u53d6\u6578\u64da\u3002\u8996\u5716\u7684\u4f7f\u7528\u53ef\u4ee5\u7c21\u5316\u67e5\u8a62\u3001\u63d0\u9ad8\u5b89\u5168\u6027\u4ee5\u53ca\u63d0\u4f9b\u6578\u64da\u7684\u62bd\u8c61\u5c64\u3002\u7136\u800c\uff0c\u5728\u7ba1\u7406SQL Server\u8996\u5716\u6642\uff0c\u6709\u5e7e\u500b\u9650\u5236\u689d\u4ef6\u9700\u8981\u9075\u5b88\uff0c\u4ee5\u78ba\u4fdd\u8996\u5716\u7684\u6b63\u78ba\u6027\u548c\u6027\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u56db\u500b\u9650\u5236\u689d\u4ef6\u3002<\/p>\n

1. \u4e0d\u53ef\u66f4\u65b0\u7684\u8996\u5716<\/h2>\n

\u67d0\u4e9b\u8996\u5716\u662f\u4e0d\u53ef\u66f4\u65b0\u7684\uff0c\u9019\u610f\u5473\u8457\u7528\u6236\u7121\u6cd5\u901a\u904e\u9019\u4e9b\u8996\u5716\u9032\u884cINSERT\u3001UPDATE\u6216DELETE\u64cd\u4f5c\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u8996\u5716\u5305\u542b\u4e86\u805a\u5408\u51fd\u6578\u3001DISTINCT\u95dc\u9375\u5b57\u3001GROUP BY\u5b50\u53e5\u6216JOIN\u64cd\u4f5c\u7684\u60c5\u6cc1\u4e0b\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u7684\u8996\u5716\u5b9a\u7fa9\u5c07\u5c0e\u81f4\u4e0d\u53ef\u66f4\u65b0\uff1a<\/p>\n

CREATE VIEW SalesSummary AS\nSELECT ProductID, SUM(Quantity) AS TotalQuantity\nFROM Sales\nGROUP BY ProductID;<\/code><\/pre>\n
\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u56e0\u70ba\u4f7f\u7528\u4e86\u805a\u5408\u51fd\u6578SUM\uff0cSQL Server\u7121\u6cd5\u78ba\u5b9a\u5982\u4f55\u5c07\u66f4\u65b0\u64cd\u4f5c\u6620\u5c04\u56de\u57fa\u790e\u8868\u3002<\/p>\n
2. \u9700\u8981\u57fa\u790e\u8868\u7684\u5b58\u5728<\/h2>\n
\u8996\u5716\u4f9d\u8cf4\u65bc\u5176\u57fa\u790e\u8868\u7684\u5b58\u5728\u3002\u5982\u679c\u57fa\u790e\u8868\u88ab\u522a\u9664\u6216\u91cd\u547d\u540d\uff0c\u5247\u8996\u5716\u5c07\u7121\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002\u9019\u6703\u5c0e\u81f4\u67e5\u8a62\u8996\u5716\u6642\u51fa\u73fe\u932f\u8aa4\u3002\u56e0\u6b64\uff0c\u5728\u7ba1\u7406\u8996\u5716\u6642\uff0c\u5fc5\u9808\u5b9a\u671f\u6aa2\u67e5\u57fa\u790e\u8868\u7684\u72c0\u614b\uff0c\u78ba\u4fdd\u5b83\u5011\u7684\u5b58\u5728\u548c\u6b63\u78ba\u6027\u3002<\/p>\n
3. \u9650\u5236\u7684\u5217\u985e\u578b<\/h2>\n
\u5728\u5275\u5efa\u8996\u5716\u6642\uff0c\u67d0\u4e9b\u5217\u985e\u578b\u662f\u88ab\u9650\u5236\u7684\u3002\u4f8b\u5982\uff0c\u8996\u5716\u4e0d\u80fd\u5305\u542bTEXT\u3001NTEXT\u6216IMAGE\u985e\u578b\u7684\u5217\u3002\u9019\u662f\u56e0\u70ba\u9019\u4e9b\u6578\u64da\u985e\u578b\u4e0d\u652f\u6301\u67d0\u4e9b\u64cd\u4f5c\uff0c\u4e26\u4e14\u5728\u6027\u80fd\u4e0a\u4e5f\u4e0d\u5920\u9ad8\u6548\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u4e0d\u5141\u8a31\u7684\u5217\u985e\u578b\uff1a<\/p>\n
CREATE VIEW InvalidView AS\nSELECT ProductName, ProductDescription\nFROM Products;<\/code><\/pre>\n
\u5982\u679cProductDescription\u7684\u6578\u64da\u985e\u578b\u662fTEXT\uff0c\u5247\u6b64\u8996\u5716\u5c07\u7121\u6cd5\u5275\u5efa\u3002<\/p>\n
4. \u53c3\u8003\u5b8c\u6574\u6027\u7d04\u675f<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u8996\u5716\u53ef\u80fd\u6703\u9055\u53cd\u53c3\u8003\u5b8c\u6574\u6027\u7d04\u675f\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8996\u5716\u7684\u5b9a\u7fa9\u4e2d\u5305\u542b\u4e86\u5916\u9375\u7d04\u675f\uff0c\u5247\u5728\u66f4\u65b0\u57fa\u790e\u8868\u6642\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u9019\u610f\u5473\u8457\u5728\u8a2d\u8a08\u8996\u5716\u6642\uff0c\u5fc5\u9808\u8003\u616e\u5230\u57fa\u790e\u8868\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u4e26\u78ba\u4fdd\u4e0d\u6703\u9055\u53cd\u4efb\u4f55\u7d04\u675f\u3002<\/p>\n
\u4f8b\u5982\uff0c\u8003\u616e\u4ee5\u4e0b\u8996\u5716\u5b9a\u7fa9\uff1a<\/p>\n
CREATE VIEW OrderDetails AS\nSELECT Orders.OrderID, Customers.CustomerName\nFROM Orders\nJOIN Customers ON Orders.CustomerID = Customers.CustomerID;<\/code><\/pre>\n
\u5982\u679c\u5728Orders\u8868\u4e2d\u522a\u9664\u4e86\u4e00\u500bCustomerID\uff0c\u4f46\u5728Customers\u8868\u4e2d\u4ecd\u7136\u5b58\u5728\u8a72ID\uff0c\u5247\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728SQL Server\u8996\u5716\u7ba1\u7406\u4e2d\uff0c\u9075\u5b88\u4e0a\u8ff0\u56db\u500b\u9650\u5236\u689d\u4ef6\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4e86\u89e3\u9019\u4e9b\u9650\u5236\u689d\u4ef6\u5f8c\uff0c\u958b\u767c\u4eba\u54e1\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u548c\u7ba1\u7406\u8996\u5716\uff0c\u5f9e\u800c\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6548\u7387\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\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u4f01\u696d\u7d1a\u61c9\u7528\u9084\u662f\u500b\u4eba\u9805\u76ee\uff0c\u6211\u5011\u7684 \u4e91\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3SQL Server\u8996\u5716\u7ba1\u7406\u4e2d\u7684\u56db\u500b\u9650\u5236\u689d\u4ef6\uff0c\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u8207\u6027\u80fd\u512a\u5316\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\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-139139","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139139","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=139139"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139139\/revisions"}],"predecessor-version":[{"id":139140,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139139\/revisions\/139140"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=139139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=139139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=139139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}