Incorrect syntax near 'THROW'

Question

IF @SQL IS NOT NULL
BEGIN
    BEGIN TRY 
        EXEC sp_executesql @SQL
        PRINT \'SUCCESS: \' + @SQL
    END TRY 
    BEGIN CATCH
        SET @ErrorMessage =          


        

Answer 1

From the Documentation on THROW, Remarks:

The statement before the THROW statement must be followed by the semicolon (;) statement terminator.

It's a good habit to always end your statements with a semi-colon.