READ_TEXT problem

Question

Hi,
Iam working with QM02 transaction and having some fields and one of them having very long text.
Iam using READ_TEXT function to get long text from QM02 transaction and my program is working fine.
But if the LONG TEXT FIELD is empty the function module is througing error.How to overcome this.Here is the code.
This is from QM module.
DATA:F_TDOBJECT LIKE THEAD-TDOBJECT,
     F_TDNAME   LIKE THEAD-TDNAME,
     F_TDID     LIKE THEAD-TDID,
     ITAB_LINES LIKE tline OCCURS 0 WITH HEADER LINE.
  LOOP AT T_DET.
    F_TDID     = 'LTQM'.       " long description
    F_TDNAME   = T_DET-QMNUM.  " this is to get number
    F_TDOBJECT = 'QMEL'.       " this is the table
    CALL FUNCTION 'READ_TEXT'
      EXPORTING
        CLIENT   = SY-MANDT
        ID       = F_TDID
        LANGUAGE = SY-LANGU
        NAME     = F_TDNAME
        OBJECT   = F_TDOBJECT
      TABLES
        LINES    = ITAB_LINES.
*collecting long text into ITAB.
    DESCRIBE TABLE ITAB_LINES LINES SY-TFILL.
      IF SY-TFILL > 0.
        LOOP AT ITAB_LINES.
          ITAB-QMNUM = T_DET-QMNUM.
          ITAB-DESC = ITAB_LINES-TDLINE.
          APPEND ITAB.
          CLEAR ITAB.
        ENDLOOP.
      ENDIF.
  ENDLOOP.

Answer 1

Hi Kaki,
1. Ideally, this FM does not give error 
   if the long text is empty.
2. However, to avoid error and to detect
  what error it is ,
  call the FM
  using EXCEPTIONS
  EXCEPTIONS
    ID                            = 1
    LANGUAGE                      = 2
    NAME                          = 3
    NOT_FOUND                     = 4
    OBJECT                        = 5
    REFERENCE_CHECK               = 6
    WRONG_ACCESS_TO_ARCHIVE       = 7
    OTHERS                        = 8
3. Using exceptions will not give short dump.
4. Moreover, we can check the value of sy-subrc
  to detect what kind of error occurred.
  May be its some other kind of error.
Regards,
Amit M.