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Make SQL Server to talk you!

Make SQL Server to talk you!. Antonios Chatzipavlis Software Architect , Development Evangelist, IT Consultant MCT, MCITP, MCPD, MCSD, MCDBA, MCSA, MCTS, MCAD, MCP, OCA MVP on SQL SERVER. Objectives. SQL Server Agent Alert System Event Notifications. What Is an Alert?.

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Make SQL Server to talk you!

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  1. Make SQL Server to talk you! Antonios Chatzipavlis Software Architect , Development Evangelist, IT Consultant MCT, MCITP, MCPD, MCSD, MCDBA, MCSA, MCTS, MCAD, MCP, OCA MVP on SQL SERVER

  2. Objectives • SQL Server Agent Alert System • Event Notifications

  3. What Is an Alert? • Predefined response to an event • Triggered by jobs, performance conditions, or application log events • Can notify an operator or start a specified job

  4. Create an Alert Use SQL Server Management Studio or “sp_add_alert” • Specify • Alert name • Condition (Event, WMI trigger, performance condition) that triggers the alert • Response – notify an operator, start a job • EXEC dbo.sp_add_alert • @name = N'Test Alert', • @message_id = 55001, @severity = 0, @notification_message = N'Error 55001 has occurred. The database will be backed up...', • @job_name = N'Back up the AdventureWorks Database' ;

  5. Responding to Alerts Either • Launch a Job • Use an existing job • Create a new job Or • Notify an Operator • Schedule responders for different parts of the day or week • E-mail, pager, or net send

  6. Using Alerts DEMO

  7. Overview of Event Notifications • Messages containing event data DDL Events Trace Events DML Events Database and Server Events • Sent to an event processing service by usingService Broker A message type and contract are predefined You must create a queue, a service, and a route

  8. Creating Event Notifications • Define the Event Notification • Specify the Scope • Specify the Event • Specify the Service CREATE EVENT NOTIFICATION NotifyALTER_T1 ON DATABASE FOR ALTER_TABLE TO SERVICE '//Adventure-Works.com/ArchiveService' , '8140a771-3c4b-4479-8ac0-81008ab17984';

  9. Processing Event Notifications • Receive the message • Extract event data by using XQuery DECLARE @cmdnvarchar(1000) DECLARE @posttimenvarchar(24) DECLARE @spidnvarchar(6) SET @cmd = @messagebody.value ('(/EVENT_INSTANCE/TSQLCommand/CommandText)[1]', 'nvarchar(100)') SET @messagebody.value ('(/EVENT_INSTANCE/PostTime)[1]','nvarchar(24)') SET @spid = @messagebody.value ('(/EVENT_INSTANCE/SPID)[1]','nvarchar(6)') DECLARE @messageTypeName NVARCHAR(256), @messageBody XML ;RECEIVE TOP(1) @messageTypeName = message_type_name, @messageBody = message_body FROM dbo.NotifyQueue; IF @@ROWCOUNT = 0 RETURN

  10. Managing Event Notifications • Viewing event notifications and queues • Deleting event notifications SELECT name FROM sys.event_notifications SELECT definition FROM sys.service_queues DROP EVENT NOTIFICATION UpdateStats ON SERVER

  11. Implementing Event Notifications DEMO

  12. Q & A

  13. My Blogs http://www.autoexec.gr/blogs/antonch http://www.dotnetzone.gr/cs/blogs/antonch

  14. Thank you

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