How To Declare Input-Output Parameters In SQL Server Stored Procedure/Function?

Question

In Oracle,

We can declare an input-output parameters (not just input or output) like the following:

Create Or Replace Procedure USE         


        

Answer 1

If you declare a parameter as OUTPUT, it acts as Both Input and OUTPUT

CREATE PROCEDURE SimpleInOutProcedure 
(
    @p_InputInt  INT,
    @p_OutputInt INT OUTPUT
)
AS
BEGIN
    SELECT 
       @p_OutputInt = @p_OutputInt
END
GO

DECLARE @p_OutputInt int = 4
EXEC SimpleInOutProcedure @p_InputInt = 1, @p_OutputInt = @p_OutputInt OUTPUT
SELECT @p_OutputInt