Help Writing conditional stored procedure

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Help Writing conditional stored procedure

Author

Topic

xrum
Yak Posting Veteran

87 Posts

Posted - 2010-03-18 : 11:26:30

Hello,

I am a bit stuck.

I need to write a stored procedure that will look on a variable passed in. if it's a 0, increment the db value by 1. if the value passed in is more then 0, then replace the db value with the one i'm passing in.

hope that makes sense.

this is what i have now... but i dont know how to put the condition in....

ALTER PROCEDURE [dbo].[sp_myProcedure]
(
@ID [int],
@result [char] ,
@myNumber [int],
@date [datetime] )
AS UPDATE [IJHNDanger].[dbo].[tblPostTestResults]
SET
[score] = @score,
[myNumber] =@myNumber ,
[date] =@date

WHERE [id] = @ID

--Check for errors
if @@Error <> 0
begin
raiserror ('Error occurred',16,2)
return
end

so, in this case.. i need to look at @myNumber. and if it's 0 then increment myNumber db field by 1, but if
@myNumber is greater then 0, i need to run the procedure as stated above.....

Thanks!

AAAV
Posting Yak Master

152 Posts

Posted - 2010-03-18 : 11:42:47

ALTER PROCEDURE [dbo].[sp_myProcedure]
(
@ID [int],
@result [char] ,
@myNumber [int],
@date [datetime] )
AS UPDATE [IJHNDanger].[dbo].[tblPostTestResults]
SET
[score] = @score,
[myNumber] = case when @myNumber=0 then [myNumber] +1 else @mynumber end ,
[date] =@date

WHERE [id] = @ID

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2010-03-18 : 11:56:36

or just


ALTER PROCEDURE [dbo].[sp_myProcedure] 
(
@ID [int],
@result [char] ,
@myNumber [int],
@date [datetime] )
AS UPDATE [IJHNDanger].[dbo].[tblPostTestResults] 
SET 
[score] = @score,
[myNumber] = coalesce(nullif(@myNumber,0),[myNumber] +1),
[date] =@date

WHERE [id] = @ID

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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