CREATE TRIGGER [Person].[TRG_Person_Contact] ON [Person].[Contact] FOR DELETE,INSERT,UPDATE AS BEGIN SET NOCOUNT ON DECLARE @ACT CHAR(6) DECLARE @DEL BIT DECLARE @INS BIT DECLARE @XMLDOC XML DECLARE @XMLTEXT NVARCHAR(MAX) DECLARE @ContactID [int] DECLARE @NameStyle [bit] DECLARE @Title [nvarchar] (8) DECLARE @FirstName [nvarchar] (50) DECLARE @MiddleName [nvarchar] (50) DECLARE @LastName [nvarchar] (50) DECLARE @Suffix [nvarchar] (10) DECLARE @EmailAddress [nvarchar] (50) DECLARE @EmailPromotion [int] DECLARE @Phone [nvarchar] (25) DECLARE @PasswordHash [varchar] (128) DECLARE @PasswordSalt [varchar] (10) DECLARE @AdditionalContactInfo [xml] DECLARE @rowguid [uniqueidentifier] DECLARE @ModifiedDate [datetime] SET @DEL = 0 SET @INS = 0 IF EXISTS (SELECT TOP 1 1 FROM DELETED) SET @DEL=1 IF EXISTS (SELECT TOP 1 1 FROM INSERTED) SET @INS = 1 IF @INS = 1 AND @DEL = 1 SET @ACT = 'UPDATE' IF @INS = 1 AND @DEL = 0 SET @ACT = 'INSERT' IF @DEL = 1 AND @INS = 0 SET @ACT = 'DELETE' IF @INS = 0 AND @DEL = 0 RETURN -- This cursor for inserted or updated records IF @ACT = 'INSERT' OR @ACT = 'UPDATE' BEGIN DECLARE curINSERTED CURSOR LOCAL FAST_FORWARD FOR SELECT [INSERTED].[ContactID] ,[INSERTED].[NameStyle] ,[INSERTED].[Title] ,[INSERTED].[FirstName] ,[INSERTED].[MiddleName] ,[INSERTED].[LastName] ,[INSERTED].[Suffix] ,[INSERTED].[EmailAddress] ,[INSERTED].[EmailPromotion] ,[INSERTED].[Phone] ,[INSERTED].[PasswordHash] ,[INSERTED].[PasswordSalt] ,[INSERTED].[AdditionalContactInfo] ,[INSERTED].[rowguid] ,[INSERTED].[ModifiedDate] FROM [INSERTED] OPEN curINSERTED FETCH NEXT FROM curINSERTED INTO @ContactID ,@NameStyle ,@Title ,@FirstName ,@MiddleName ,@LastName ,@Suffix ,@EmailAddress ,@EmailPromotion ,@Phone ,@PasswordHash ,@PasswordSalt ,@AdditionalContactInfo ,@rowguid ,@ModifiedDate WHILE @@FETCH_STATUS = 0 BEGIN SET @XMLDOC = ( SELECT @ACT AS ZZ_ROWACTION ,[Person.Contact].[ContactID] ,[Person.Contact].[NameStyle] ,[Person.Contact].[Title] ,[Person.Contact].[FirstName] ,[Person.Contact].[MiddleName] ,[Person.Contact].[LastName] ,[Person.Contact].[Suffix] ,[Person.Contact].[EmailAddress] ,[Person.Contact].[EmailPromotion] ,[Person.Contact].[Phone] ,[Person.Contact].[PasswordHash] ,[Person.Contact].[PasswordSalt] ,[Person.Contact].[AdditionalContactInfo] ,[Person.Contact].[rowguid] ,[Person.Contact].[ModifiedDate] FROM ( SELECT @ContactID AS [ContactID] ,@NameStyle AS [NameStyle] ,@Title AS [Title] ,@FirstName AS [FirstName] ,@MiddleName AS [MiddleName] ,@LastName AS [LastName] ,@Suffix AS [Suffix] ,@EmailAddress AS [EmailAddress] ,@EmailPromotion AS [EmailPromotion] ,@Phone AS [Phone] ,@PasswordHash AS [PasswordHash] ,@PasswordSalt AS [PasswordSalt] ,@AdditionalContactInfo AS [AdditionalContactInfo] ,@rowguid AS [rowguid] ,@ModifiedDate AS [ModifiedDate] ) AS [Person.Contact] FOR XML AUTO, TYPE ) SET @XMLTEXT = CONVERT(NVARCHAR(MAX),@XMLDOC) IF @XMLTEXT IS NOT NULL BEGIN --send the message exec USP_SendBrokerMessage @SourceService = 'AdventureWorksSourceQueueSourceService', @TargetService = N'AdventureWorksTargetQueueTargetService', @MessageContract = 'http://www.servicebroker.com/Contract', @MessageType = 'http://www.servicebroker.com/SendType', @MessageContent = @XMLTEXT; END FETCH NEXT FROM curINSERTED INTO @ContactID ,@NameStyle ,@Title ,@FirstName ,@MiddleName ,@LastName ,@Suffix ,@EmailAddress ,@EmailPromotion ,@Phone ,@PasswordHash ,@PasswordSalt ,@AdditionalContactInfo ,@rowguid ,@ModifiedDate END CLOSE curINSERTED DEALLOCATE curINSERTED END -- This cursor for deleted records IF @ACT = 'DELETE' BEGIN DECLARE curDELETED CURSOR LOCAL FAST_FORWARD FOR SELECT [DELETED].[ContactID] ,[DELETED].[NameStyle] ,[DELETED].[Title] ,[DELETED].[FirstName] ,[DELETED].[MiddleName] ,[DELETED].[LastName] ,[DELETED].[Suffix] ,[DELETED].[EmailAddress] ,[DELETED].[EmailPromotion] ,[DELETED].[Phone] ,[DELETED].[PasswordHash] ,[DELETED].[PasswordSalt] ,[DELETED].[AdditionalContactInfo] ,[DELETED].[rowguid] ,[DELETED].[ModifiedDate] FROM [DELETED] OPEN curDELETED FETCH NEXT FROM curDELETED INTO @ContactID ,@NameStyle ,@Title ,@FirstName ,@MiddleName ,@LastName ,@Suffix ,@EmailAddress ,@EmailPromotion ,@Phone ,@PasswordHash ,@PasswordSalt ,@AdditionalContactInfo ,@rowguid ,@ModifiedDate WHILE @@FETCH_STATUS = 0 BEGIN SET @XMLDOC = ( SELECT @ACT AS ZZ_ROWACTION ,[Person.Contact].[ContactID] ,[Person.Contact].[NameStyle] ,[Person.Contact].[Title] ,[Person.Contact].[FirstName] ,[Person.Contact].[MiddleName] ,[Person.Contact].[LastName] ,[Person.Contact].[Suffix] ,[Person.Contact].[EmailAddress] ,[Person.Contact].[EmailPromotion] ,[Person.Contact].[Phone] ,[Person.Contact].[PasswordHash] ,[Person.Contact].[PasswordSalt] ,[Person.Contact].[AdditionalContactInfo] ,[Person.Contact].[rowguid] ,[Person.Contact].[ModifiedDate] FROM ( SELECT @ContactID AS [ContactID] ,@NameStyle AS [NameStyle] ,@Title AS [Title] ,@FirstName AS [FirstName] ,@MiddleName AS [MiddleName] ,@LastName AS [LastName] ,@Suffix AS [Suffix] ,@EmailAddress AS [EmailAddress] ,@EmailPromotion AS [EmailPromotion] ,@Phone AS [Phone] ,@PasswordHash AS [PasswordHash] ,@PasswordSalt AS [PasswordSalt] ,@AdditionalContactInfo AS [AdditionalContactInfo] ,@rowguid AS [rowguid] ,@ModifiedDate AS [ModifiedDate] ) AS [Person.Contact] FOR XML AUTO, TYPE ) SET @XMLTEXT = CONVERT(NVARCHAR(MAX),@XMLDOC) IF @XMLTEXT IS NOT NULL BEGIN --send the message exec USP_SendBrokerMessage @SourceService = 'AdventureWorksSourceQueueSourceService', @TargetService = N'AdventureWorksTargetQueueTargetService', @MessageContract = 'http://www.servicebroker.com/Contract', @MessageType = 'http://www.servicebroker.com/SendType', @MessageContent = @XMLTEXT; END FETCH NEXT FROM curDELETED INTO @ContactID ,@NameStyle ,@Title ,@FirstName ,@MiddleName ,@LastName ,@Suffix ,@EmailAddress ,@EmailPromotion ,@Phone ,@PasswordHash ,@PasswordSalt ,@AdditionalContactInfo ,@rowguid ,@ModifiedDate END CLOSE curDELETED DEALLOCATE curDELETED END END go
Tuesday, 20 May 2008
Sending Service Broker Message on Trigger
Sample Trigger to send Service Broker message on data change
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2 comments:
Sorry one doubt, but it's necessary to use cursors?
If I make "update Person.Contact set title = 'Mr' where title = 'Mr.'" and I update 10 records, the trigger won't fire 10 times, one time for each record updated?
From looking back I believe the cursor was only to send individual messages re; row changes via service broker.
Apologies, I haven't touched service broker for 3 1/2 years. You'll have to test, as i believe you only need simple trigger functionality.
r
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