Question

I was wondering what I would have to do to throw an exception on the following stored procedure if there were 0 results so it could select the NULL row? This is for MSSQL, thanks so much.

...

BEGIN TRY
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    SELECT
        NoteId,
        Url,
        Subject,
        Content,
        ExpiresAt,
        RemindAt
    FROM dbo.browsingnotes_Notes
    WHERE UserId = @UserId
        AND Hash = @Hash
END TRY
BEGIN CATCH
    SELECT
        NULL AS 'NoteId',
        NULL AS 'Url',
        NULL AS 'Subject',
        NULL AS 'Content',
        NULL AS 'ExpiresAt',
        NULL AS 'RemindAt'
END CATCH

Answer 1

Does RAISERROR work? Or, as @Candie notes, THROW in SQL 2012

You could check @@RowCount after the first select, and if 0, select the second.