Voorbeeld gebruik van Return keyword

Return keyword:
Exits unconditionally from a query or procedure. RETURN is immediate and complete and can be used at any point to exit from a procedure, batch, or statement block. Statements following RETURN are not executed.


Declare @userId int ; 
SELECT @userId = dbo.GetUserID(@login, @password); 
IF @userID is null 
Begin PRINT 'Invalid login...' 
Print @userID 




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