SQL Pass Parameters from One stored proc to another - sql

Question

I have two SQL scripts: Script A and B. Script A retrieves information and uses the sp_executesql command to call stored procedure (Script B). I can successfully accomplish this.
However, now i would like to pass a value from Script A to Script B. I am unable to accomplish this. #nID is the parameter I would like to pass. I am using this link as a reference https://msdn.microsoft.com/en-IN/library/ms188001.aspx
My scripts are attached. For simplicity, I just made my parameter value equal to 5. So how do I pass a '5' from one script to another? Thanks for any help.
Script A
BEGIN
SET NOCOUNT ON;
DECLARE #sp nVARCHAR(25)
DECLARE #nID nvarchar(25)
DECLARE #busID nvarchar(25)
DECLARE #ParmDefinition nvarchar(500)
SET #ParmDefinition = N'#nID nvarchar(50) output ';
set #sp = 'WMCOMM';
set #busID = 5
execute sp_executesql #sp, #ParmDefinition, #nID = #busID;
END
Script B
ALTER PROCEDURE [dbo].[WMCM]
AS
BEGIN
SET nocount ON;
declare #numID nvarchar(50)
insert into tester(numid)
values(#numID)
END

Answer 1

Stored procedure B requires an input parameter
ALTER PROCEDURE [dbo].[WMCM]
#nID nvarchar(25) --DECLARE PARAMETER HERE THEN YOU CAN USE IT IN THE SP
AS
BEGIN
SET nocount ON;
declare #numID nvarchar(50)
insert into tester(numid)
values(#numID)
END
Here's a working template of what you are trying to acheive.
--RUN ME FIRST
CREATE procedure dbo.B
#nID AS NVARCHAR(5)
AS
SELECT #nID
GO
--RUN ME SECOND
CREATE procedure dbo.A
AS
DECLARE #nID NVARCHAR(50) = 'abc'
DECLARE #sp NVARCHAR(50) = 'EXECUTE dbo.B #nID'
EXECUTE sp_executesql #sp,N'#nID NVARCHAR(50)',#nID = #nID;
GO
--RUN ME THIRD
EXEC dbo.a

Answer 2

I dumbed-down the stored procedure to only show and return.
But this does what you want:
alter PROCEDURE [dbo].[WMCM]
#nID nvarchar(25) --DECLARE PARAMETER HERE THEN YOU CAN USE IT IN THE SP
, #InAndOutValue nvarchar(50) OUTPUT
AS
BEGIN
SET nocount ON;
Select '[dbo].[WMCM] has access to :' as ProcName , #nID as TheId
Select '[dbo].[WMCM] can use same variable as input and output. InValue :' as ProcName , #InAndOutValue as TheId
select #InAndOutValue= 'NowImAnOutValue'
END
GO
DECLARE #SQL_String NVARCHAR(max)
DECLARE #Parameter_Definition NVARCHAR(max)
SET #SQL_String = N'
EXEC [dbo].[WMCM] #nID = #nID_input, #InAndOutValue = #InAndOutValue_out OUTPUT
'
SET #Parameter_Definition = N'
#nID_input nvarchar(25),
#InAndOutValue_out nvarchar(50) OUTPUT'
DECLARE #nID nvarchar(25)
DECLARE #InAndOutValue nvarchar(50)
SET #nID = '5'
SET #InAndOutValue = 'InAndOutVariable_JustInValue'
EXECUTE sp_executesql #SQL_String, #Parameter_Definition, #nID_input = #nID, #InAndOutValue_out = #InAndOutValue OUTPUT
SELECT #InAndOutValue as IGotTheInAndOutValue