Question

I’m using table values for the first time as a parameter to a function in SQL Server 2008. The code below produces this error:

Must declare the scalar variable “@RESULT”.

Why?! I’m declaring it on the first line of the function!

        ALTER FUNCTION f_Get_Total_Amount_Due(

      @CUSTOMER_LIST   [tpCSFM_CUSTOMER_SET_FOR_MONEY] READONLY

    )
    RETURNS [tpCSFM_CUSTOMER_SET_FOR_MONEY]
    AS
    BEGIN


 --Prepare the return value, start with initial customer list
 DECLARE @RESULT AS [tpCSFM_CUSTOMER_SET_FOR_MONEY]
 INSERT INTO @RESULT SELECT * FROM @CUSTOMER_LIST

 --Todo: populate with real values
 UPDATE @RESULT SET tpCSAM_MONEY_VALUE = 100

 --return total amounts as currency
 RETURN @RESULT

 END

Answer 1

This one compiles fine:

--Returns the name of the field to use to find results
ALTER FUNCTION f_Get_Total_Amount_Due(
    @CUSTOMER_LIST          [tpCSFM_CUSTOMER_SET_FOR_MONEY] READONLY
)
RETURNS @RESULT TABLE(
    tpCSFM_CUS_ID   uniqueidentifier PRIMARY KEY,
    tpCSFM_MONEY_VALUE  MONEY NULL
)
AS
BEGIN
--Prepare the return value, start with initial customer list
INSERT INTO @RESULT SELECT * FROM @CUSTOMER_LIST

--Todo: populate with real values
UPDATE @RESULT SET tpCSFM_MONEY_VALUE = 100

--return total amounts as currency
RETURN
END