如何在存储过程中返回语句

Question

This is my procedure :

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[uspChangeMemberRole]
    @TeamID INT,
    @MemberID INT,
    @MemberRole TINYINT
AS 
BEGIN
    SET NOCOUNT ON;

    UPDATE [dbo].[TeamMember] 
    SET MemberRole = @MemberRole 
    WHERE TeamID = @TeamID 
      AND MemberID = @MemberID;

    RETURN @MemberRole;
END

When I execute this procedure I want to return "MemberRole Successfully Changed".

Please give me a solution how to return

Answer 1

Use Row Count to check if there are affected rows (identified if update is successful) then select a string.

RowCount - Returns the number of rows affected by the last statement.

IF @@ROWCOUNT > 0
BEGIN
   SELECT 'Member Role Successfully Chnaged';
END

And I think this statement is not necessary since this is an input parameter, you can get outside the proc.

return @MemberRole;

Answer 2

Change your return to select, and replace the datatype of your output parameter with varchar.

    SET ANSI_NULLS ON
    GO
    SET QUOTED_IDENTIFIER ON
    GO

    ALTER PROCEDURE [dbo].[uspChangeMemberRole]
    @TeamID INT,
    @MemberID INT,
    @MemberRole VARCHAR(100) OUTPUT
    AS BEGIN

    SET NOCOUNT ON;

    UPDATE [dbo].[TeamMember] SET MemberRole=@MemberRole WHERE TeamID=@TeamID AND MemberID=@MemberID;

    SET @MemberRole = 'MemberRole Successfully Changed.'

    SELECT @MemberRole AS 'RETURN';

Answer 3

I am adding some of the concept that will help you to understand how Procedure's will return values.

1. If you want to return something from SQL Server to Frontend, Just use " select " statement.
2. You have to use proper command from frontend like you want to return scalar value, or query.