Store the result of a stored procedure without using an output parameter - sql

Question

I have 2 stored procedures: up_proc1 and up_proc2.
This is (a simplified version of) up_proc2:
CREATE PROCEDURE dbo.up_proc2
#id_campaign uniqueidentifier, #id_subcampaign uniqueidentifier,
#id_lead uniqueidentifier, #offer NVARCHAR(1000) = NULL
AS
SET NOCOUNT ON
DECLARE #id UNIQUEIDENTIFIER
SELECT #id = id FROM prospects WHERE id_lead = #id_lead
AND id_campaign = #id_campaign AND id_subcampaign = #id_subcampaign
IF #id IS NULL
BEGIN
SET #id = newid ()
INSERT INTO prospects (id, id_campaign, id_subcampaign, id_lead, offer)
values (#id, #id_campaign, #id_subcampaign, #id_lead, #offer)
END
ELSE
BEGIN
UPDATE prospects set offer = #offer WHERE id=#id
END
SELECT #id AS ID
GO
From up_proc1 I call up_proc2. What I would like to achieve is to store the #id of up_proc2 in a variable declared in up_proc1. Is this possible without using an output parameter?
This is how up_proc1 looks like:
CREATE PROCEDURE dbo.up_proc1
AS
SET NOCOUNT ON
DECLARE #fromProc2 UNIQUEIDENTIFIER
-- NOT WORKING
-- select #fromProc2 = exec up_insertProspects [snip]
-- ALSO NOT WORKING
-- exec #fromProc2 = up_insertProspects [snip]

Answer 1

What you could do is store the output into a table variable:
DECLARE #tmpTable TABLE (ID UNIQUEIDENTIFIER)
INSERT INTO #tmpTable
EXEC dbo.up_proc2 ..........
and then go from there and use that table variable later on.

Answer 2

You can certainly consume this as an output parameter in proc2 without affecting how your C# code retrieves the eventual resultset.
ALTER PROCEDURE dbo.up_proc2
#id_campaign uniqueidentifier,
#id_subcampaign uniqueidentifier,
#id_lead uniqueidentifier,
#offer NVARCHAR(1000) = NULL,
#fromProc2 UNIQUEIDENTIFER = NULL OUTPUT
AS
BEGIN
SET NOCOUNT ON;
...
C# can ignore the new parameter since it is nullable (but since a single output parameter is more efficient than a data reader, you may consider updating your C# code to take advantage of the output parameter later).
Now in proc1:
ALTER PROCEDURE dbo.up_proc1
AS
BEGIN
SET NOCOUNT ON;
DECLARE #fromProc2 UNIQUEIDENTIFIER;
EXEC dbo.up_proc2
--... other parameters ...,
#fromProc2 = #fromProc2 OUTPUT;
-- now you can use #fromProc2
END
GO