Trigger syntactically wrong

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Hallo,

I want to write a trigger that updates two other tables before a delete operation of one element is executed. However I get an error message: Invalid column name. Can someone plese help me?

Thanks

CREATE TRIGGER [tbl_a].[tbl_a_trd] ON [tbl_a].[]
WITH EXECUTE AS CALLER
FOR DELETE
AS
DECLARE @number as int
DECLARE @maxint as int
DECLARE @mask as int
DECLARE @client as int
DECLARE @rc as int
SET @rc = @@ROWCOUNT;
IF @rc = 0 
RETURN;
IF @rc = 1
BEGIN

  set @number = (select number from deleted);
  set @maxint = 2147483647 ;
  set @mask = maxint - number;
  set @client = (select client from deleted);

  
  update tbl_b set flag = (flag & mask) where client = @client;
  
  update tbl_c set flag = (flag & mask) where client = @client;
  
END
GO

Posted 2-Nov-11 7:45am

chris085

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Bala Selvanayagam 2-Nov-11 14:02pm

What you are trying to achieve by (flag & mask) ? in the update statement

chris085 2-Nov-11 14:05pm

i want to do a bitwise and

Bala Selvanayagam 2-Nov-11 14:24pm

Just posted an answer, please have a look and let me know wehther helps

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Bala Selvanayagam · Accepted Answer · 2011-11-02T08:22:00

Solution 2

Replace

set @mask = maxint - number;

with

set @mask = @maxint - @number;

also

Replace

SQL

update tbl_b set flag = (flag & mask) where client = @client;

  update tbl_c set flag = (flag & mask) where client = @client

with

SQL

update tbl_b set flag = (flag & @mask) where client = @client;

  update tbl_c set flag = (flag & @mask) where client = @client;

This should work

Posted 2-Nov-11 8:22am

Bala Selvanayagam

Updated 2-Nov-11 8:23am

v2

Comments

chris085 2-Nov-11 14:59pm

That's it. Thanks a lot

Bala Selvanayagam 2-Nov-11 15:18pm

good to hear