PROCEDURE Fail()
    THROW
ENDPROCEDURE
FUNCTION CatchAndReturn() RETURNS INTEGER
    TRY
        CALL Fail()
    CATCH
        RETURN 7
    ENDTRY
    RETURN 0
ENDFUNCTION
OUTPUT CatchAndReturn()
TRY
    TRY
        THROW
    CATCH
        THROW
    ENDTRY
CATCH
    OUTPUT "outer catch"
ENDTRY