Question

 [dbo].[StoreProc1]
 (
 @Name varchar(10) = NULL,
 @Age int
 )

 SELECT * FROM TABLE WHERE Name = @Name and Age = @Age

However, since @Name = NULL is incorrect, The stored procedure doesn’t know if the input for Name was Null or Not to do Name IS NULL or Name = '<value>'

What’s the quick work-around this?

I suppose i can do something like this, but isn’t there an easier way?

IF @Name IS NULL 
BEGIN 
  SELECT * FROM TABLE WHERE NAME IS NULL AND AGE=@AGE
END
ELSE
BEGIN
  SELECT * FROM TABLE WHERE NAME=@NAME AND AGE=@AGE
END

Answer 1

[dbo].[StoreProc1]
 (
 @Name varchar(10) = NULL,
 @Age int
 )

 SELECT * FROM TABLE WHERE (Name = @Name OR COALESCE(Name, @Name) IS NULL) and Age = @Age