Question

I have a stored procedure which returns a value (ex: GetData)

How can I declare a variable in another function to get this value?

Something like this

Create Function Test
Return Int
Begin
    Declare @data My_Data_Type
    Declare @count int
    SET @data = exec GetData
    Select @count = count(*)
    From @data

    Return @count
End

Please help me !!!!

Answer 1

If your stored procedure returns table then do

declare @data as table(col1 int, col2 varchar(50))

insert into @data exec GetData

Select @count = count(*) from @data

If you want to return scalar valus e.g. int, varchar, use OUTPUT parameter

CREATE PROC GetData
(
   @retVal int OUTPUT
)
AS
BEGIN
     SET @retVal = 123

     Return 0
END

Then retrieve it this way

 declare @data int
 EXEC GetData @data OUTPUT