{"id":161763,"date":"2024-11-04T09:08:36","date_gmt":"2024-11-04T01:08:36","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161763\/"},"modified":"2024-11-04T09:08:37","modified_gmt":"2024-11-04T01:08:37","slug":"%e7%b4%9a%e5%84%aa%e5%8c%96-mssql-%e8%aa%9e%e5%8f%a5%e5%9f%b7%e8%a1%8c%e6%af%ab%e7%a7%92%e7%b4%9a%e5%88%a5%e7%9a%84%e6%a5%b5%e8%87%b4%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%ef%bc%88mssql-%e8%aa%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161763\/","title":{"rendered":"\u7d1a\u512a\u5316 MSSQL \u8a9e\u53e5\u57f7\u884c\u6beb\u79d2\u7d1a\u5225\u7684\u6975\u81f4\u6027\u80fd\u512a\u5316\uff08mssql \u8a9e\u53e5\u57f7\u884c\u6beb\u79d2\uff09"},"content":{"rendered":"<h1 id=\"%e7%b4%9a%e5%84%aa%e5%8c%96-mssql-%e8%aa%9e%e5%8f%a5%e5%9f%b7%e8%a1%8c%e6%af%ab%e7%a7%92%e7%b4%9a%e5%88%a5%e7%9a%84%e6%a5%b5%e8%87%b4%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96-DdJZTjEuEC\">\u7d1a\u512a\u5316 MSSQL \u8a9e\u53e5\u57f7\u884c\u6beb\u79d2\u7d1a\u5225\u7684\u6975\u81f4\u6027\u80fd\u512a\u5316<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6574\u9ad4\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u7279\u5225\u662f\u5c0d\u65bc\u4f7f\u7528 Microsoft SQL Server (MSSQL) \u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u512a\u5316 SQL \u8a9e\u53e5\u4ee5\u9054\u5230\u6beb\u79d2\u7d1a\u5225\u7684\u57f7\u884c\u6642\u9593\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u6709\u6548\u7684 MSSQL \u8a9e\u53e5\u512a\u5316\u6280\u8853\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u5be6\u73fe\u6975\u81f4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%90%86%e8%a7%a3%e5%9f%b7%e8%a1%8c%e8%a8%88%e5%8a%83-DdJZTjEuEC\">\u7406\u89e3\u57f7\u884c\u8a08\u5283<\/h2>\n<p>\u5728\u512a\u5316 SQL 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\u4e2d\u64b0\u5beb\u67e5\u8a62\u3002<\/li>\n<li>\u9ede\u64ca\u201c\u986f\u793a\u5be6\u969b\u57f7\u884c\u8a08\u5283\u201d\u6309\u9215\u3002<\/li>\n<li>\u57f7\u884c\u67e5\u8a62\u5f8c\uff0c\u67e5\u770b\u751f\u6210\u7684\u57f7\u884c\u8a08\u5283\u5716\u793a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8-DdJZTjEuEC\">\u7d22\u5f15\u7684\u4f7f\u7528<\/h2>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\u5de5\u5177\u3002\u9069\u7576\u7684\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7d22\u5f15\u512a\u5316\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff1a<\/strong>\u6839\u64da\u67e5\u8a62\u7684\u7279\u6027\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff0c\u4f8b\u5982\u805a\u96c6\u7d22\u5f15\u548c\u975e\u805a\u96c6\u7d22\u5f15\u3002<\/li>\n<li><strong>\u907f\u514d\u904e\u591a\u7684\u7d22\u5f15\uff1a<\/strong>\u96d6\u7136\u7d22\u5f15\u53ef\u4ee5\u52a0\u901f\u67e5\u8a62\uff0c\u4f46\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u5beb\u5165\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u5e73\u8861\u3002<\/li>\n<li><strong>\u5b9a\u671f\u91cd\u5efa\u548c\u91cd\u7d44\u7d22\u5f15\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u7684\u8b8a\u5316\uff0c\u7d22\u5f15\u53ef\u80fd\u6703\u8b8a\u5f97\u788e\u7247\u5316\uff0c\u5b9a\u671f\u7dad\u8b77\u53ef\u4ee5\u4fdd\u6301\u5176\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e9%87%8d%e5%af%ab-DdJZTjEuEC\">\u67e5\u8a62\u91cd\u5beb<\/h2>\n<p>\u6709\u6642\u5019\uff0c\u7c21\u55ae\u7684\u67e5\u8a62\u91cd\u5beb\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u91cd\u5beb\u67e5\u8a62\u7684\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 JOIN \u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528 JOIN \u4f86\u66ff\u4ee3\u5b50\u67e5\u8a62\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>\u907f\u514d SELECT *\uff1a<\/strong>\u50c5\u9078\u64c7\u9700\u8981\u7684\u5217\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u7684\u5927\u5c0f\u3002<\/li>\n<li><strong>\u4f7f\u7528 WHERE \u5b50\u53e5\u904e\u6ffe\u6578\u64da\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528 WHERE \u5b50\u53e5\u4f86\u9650\u5236\u8fd4\u56de\u7684\u884c\u6578\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%8f%83%e6%95%b8%e5%8c%96%e6%9f%a5%e8%a9%a2-DdJZTjEuEC\">\u53c3\u6578\u5316\u67e5\u8a62<\/h2>\n<p>\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u9632\u6b62 SQL \u6ce8\u5165\u653b\u64ca\u3002\u53c3\u6578\u5316\u67e5\u8a62\u5141\u8a31 SQL Server \u91cd\u7528\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u6e1b\u5c11\u7de8\u8b6f\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u53c3\u6578\u5316\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE @CustomerID INT\nSET @CustomerID = 1\n\nSELECT * FROM Customers WHERE CustomerID = @CustomerID<\/code><\/pre>\n<h2 id=\"%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4-DdJZTjEuEC\">\u76e3\u63a7\u548c\u8abf\u6574<\/h2>\n<p>\u6301\u7e8c\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u662f\u78ba\u4fdd\u5176\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002\u4f7f\u7528 SQL Server \u7684\u52d5\u614b\u7ba1\u7406\u8996\u5716 (DMVs) \u53ef\u4ee5\u7372\u53d6\u6709\u95dc\u67e5\u8a62\u6027\u80fd\u7684\u8a73\u7d30\u4fe1\u606f\u3002\u6839\u64da\u9019\u4e9b\u6578\u64da\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9032\u884c\u5fc5\u8981\u7684\u8abf\u6574\u3002<\/p>\n<h3 id=\"%e5%b8%b8%e7%94%a8%e7%9a%84-dmvs%ef%bc%9a-DdJZTjEuEC\">\u5e38\u7528\u7684 DMVs\uff1a<\/h3>\n<ul>\n<li><code>sys.dm_exec_query_stats<\/code>\uff1a\u63d0\u4f9b\u67e5\u8a62\u57f7\u884c\u7d71\u8a08\u4fe1\u606f\u3002<\/li>\n<li><code>sys.dm_exec_requests<\/code>\uff1a\u986f\u793a\u7576\u524d\u6b63\u5728\u57f7\u884c\u7684\u8acb\u6c42\u3002<\/li>\n<li><code>sys.dm_exec_sessions<\/code>\uff1a\u986f\u793a\u7576\u524d\u9023\u63a5\u7684\u6703\u8a71\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-DdJZTjEuEC\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u7406\u89e3\u57f7\u884c\u8a08\u5283\u3001\u5408\u7406\u4f7f\u7528\u7d22\u5f15\u3001\u91cd\u5beb\u67e5\u8a62\u3001\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u4ee5\u53ca\u6301\u7e8c\u76e3\u63a7\u6027\u80fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5be6\u73fe MSSQL \u8a9e\u53e5\u7684\u6beb\u79d2\u7d1a\u5225\u57f7\u884c\u6027\u80fd\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u97ff\u61c9\u901f\u5ea6\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> 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