How to INSERT INTO [second temp table] FROM [stored procedure returning two tables]

Question

I have an existing stored procedure that essentially returns two tables, the first table being just one integer in an unnamed column, and the second table has rows of named columns.

I need to build a new stored procedure that executes the existing stored procedure and uses the data from the second table returned by the existing stored procedure, and ignores the first table/integer.

The following is my attempt at it, but it returns the error, "Column name or number of supplied values does not match table definition" because of that first table/integer.

CREATE PROCEDURE [dbo].[New_StoredProcedure]
AS
BEGIN
CREATE TABLE #temptable(X VARCHAR(20), Y INT, Z VARCHAR(100))
INSERT INTO #temptable(X, Y, Z)
EXEC [Existing_StoredProcedure]
    @a = '1',
    @b = '2',
    @c = '3'

SELECT * FROM #temptable
DROP TABLE #temptable
END

Is there a way for to write this that ignores the first table/integer?

Answer 1

Another way you can control the returned result set will be adding an additional parameter which will decied how many and which result sets are returned when a stored procedure is called.

For example in your [Existing_StoredProcedure] you can do something like .....

ALTER PROCEDURE [Existing_StoredProcedure]
@a    VARCHAR(10),
@b    VARCHAR(10),
@c    VARCHAR(10),
@ResultSet INT = NULL    --<-- Indicator Param
AS 
BEGIN
  SET NOCOUNT ON;

  -- Common code that executes regardless of what result set is required


  -- Now return the result set based on value passed to @ResultSet       
  IF (@ResultSet = 1 OR @ResultSet IS NULL)
    BEGIN
       -- Code for 1st result set  
    END

  IF (@ResultSet = 2 OR @ResultSet IS NULL)
    BEGIN
       -- Code for 2nd result set  
    END

END 

Now if you dont pass any value to @ResultSet param both result sets will be returned but if you pass 1 or 2 , only relative result set will be returned.