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SQL Server 2008的管理能力

Microsoft SQL Server 提供了一个用于管理一个或多个SQL Server实例的基于政策的系统和用于性能监控、故障排除和调整的工具,使得管理员能够更有效的管理他们的数据库和SQL Server 实例……提高管理员生产力... 全文

SQL Server 2008 SQL Server 2008管理 SQL Server2008扩展

SQL Server 2008新特性之数据仓库可扩展性(1)

1. 导言Microsoft SQL Server 2008提供了一个全面的数据仓库平台。它使得你可以使用一套单独的、整合的产品套件建立和管理你的数据仓库,并使你可以为你的用户提供洞察信息。它可以满足最大规模企业的需求,给予你的终端用户和IT员工所需的权利。... 全文

SQL Server 数据库 数据仓库 可扩展性 报表 查询

实战:sqlserver 2008 扩展事件

--如果已经存在Event Session删除 IF EXISTS (SELECT * FROM sys.server_event_sessions WHERE name='MonitorLongQuery') DROP EVENT SESSION MonitorLongQuery ON SERVER GO --创建Extended Event session CREATE EVENT SESSION MonitorLongQuery ON SERVER --增加Event(SQL完成事件) ADD EVENT sqlserver.sql_statement_completed ( --指定收集的Event信息 ACTION ( sqlserver.database_id, sqlserver.session_id, sqlserver.username, sqlserver.client_hostname, sqlserver.sql_text, sqlserver.tsql_stack ) --Filter信息(CPU超过或者整个运行时间超过10S) WHERE sqlserver.sql_statement_completed.cpu> 10000 OR sqlserver.sql_statement_completed.duration> 10000 ) --指定收集的Event信息储存位置(可以存储到内存也可以到文件) ADD TARGET package0.asynchronous_file_target ( SET FILENAME = N's:\monitor\LogQuery.xet', METADATAFILE = 'S:\monitor\LongQuery.xem' ) GO SELECT sessions.name AS SessionName,sevents.package as PackageName, sevents.name AS EventName, sevents.predicate, sactions.name AS ActionName, stargets.name AS TargetName FROM sys.server_event_sessions sessions INNER JOIN sys.server_event_session_events sevents ON sessions.event_session_id= sevents.event_session_id INNER JOIN sys.server_event_session_actions sactions ON sessions.event_session_id= sactions.event_session_id INNER JOIN sys.server_event_session_targets stargets ON sessions.event_session_id= stargets.event_session_id WHERE sessions.name='MonitorLongQuery' GO --启动Event Session捕获数据 ALTER EVENT SESSION MonitorLongQuery ON SERVER STATE = START GO --查询 SELECT CAST(event_data AS XML) event_data,* FROM sys.fn_xe_file_target_read_file ('s:\monitor\LogQuery_0_129954478780290000.xet', 's:\monitor\LongQuery_0_129954478780330000.xem',NULL,NULL) go -停掉Event Session ALTER EVENT SESSION MonitorLongQuery ON SERVER STATE = STOP GO --删除Event Session IF EXISTS(SELECT * FROM sys.server_event_sessions WHERE name='MonitorLongQuery') DROP EVENT SESSION MonitorLongQuery ON SERVER GO ------------将XML转换为常规的表格式 IF EXISTS ( SELECT * FROM tempdb.dbo.sysobjects WHERE id = OBJECT_ID(N'tempdb..#MyData') AND type = 'U' ) DROP TABLE #MyData go CREATE TABLE #MyData ( database_id INT NOT NULL , username NVARCHAR(100) NOT NULL, client_hostname NVARCHAR(100) NOT NULL, sql_text NVARCHAR(MAX) NOT NULL , cpu INT NOT NULL ) go DECLARE @xmlData XML DECLARE @xmlString NVARCHAR(MAX) DECLARE @database_id INT DECLARE @username NVARCHAR(100) DECLARE @client_hostname NVARCHAR(100) DECLARE @sql_text NVARCHAR(MAX) DECLARE @cpu INT DECLARE myCur CURSOR READ_ONLY FOR SELECT TOP 200 event_data --CAST(event_data AS XML) FROM sys.fn_xe_file_target_read_file ('s:\monitor\LogQuery_0_130638808366940000.xet', 's:\monitor\LongQuery_0_130638808366940000.xem',NULL,NULL) OPEN myCur FETCH NEXT FROM myCur INTO @xmlString WHILE @@FETCH_STATUS = 0 BEGIN BEGIN TRY SET @xmlData = CAST(@xmlString AS XML) --set @cpu = 0 --获取cpu SET @cpu = @xmlData.query('//data[@name="cpu"]/value').value('(value)[1]', 'INT') --获取database_id SET @database_id = @xmlData.query('//action[@name="database_id"]/value').value('(value)[1]', 'INT') --获取username SET @username = @xmlData.query('//action[@name="username"]/value').value('(value)[1]', 'NVARCHAR(100)') --获取hostname SET @client_hostname = @xmlData.query('//action[@name="client_hostname"]/value').value('(value)[1]', 'NVARCHAR(100)') --获取sql_text SET @sql_text = @xmlData.query('//action[@name="sql_text"]/value').value('(value)[1]', 'NVARCHAR(MAX)') --开始插入数据 INSERT #MyData ( database_id, sql_text, username, client_hostname, cpu ) VALUES ( @database_id, -- database_id - int @sql_text, -- sql_text - nvarchar(max) @username, @client_hostname, @cpu ) END TRY BEGIN CATCH END CATCH FETCH NEXT FROM myCur INTO @xmlString END CLOSE myCur DEALLOCATE myCur SELECT b.name,a.username,a.client_hostname,a.sql_text,a.cpu FROM #MyData AS a inner join sys.databases as b on a.database_id=b.database_id order by a.cpu desc go  ... 全文

sqlserver扩展事件 sqlserver 2008r2扩展事件 扩展事件XML SQL Server Extended

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