i have to use Field Symbol in following modify statement.
Plz help with code...
LOOP AT itab_data INTO wa_data.
wa_data-f1 = logic.
wa_data-f2 = logic.
MODIFY itab_data FROM wa_data INDEX sy-tabix.
ENDLOOP.
Thanks in advance.
regards
2 Answers
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Former MemberPosted on Aug 02, 2006 at 05:26 PMHai
Check the following Links & code
Go through the following Link
This documentation should answer your question. I use field symbols when using dynamic programming.
Just go through these links.
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3860358411d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/16/0dce0a0cf711d3b9360000e8353423/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb3930358411d1829f0000e829fbfe/content.htm
Field-Symbols are place holders for existing fields.
A Field-Symbol does not physically reserve space for a field but points to a field, which is not known until run time of the program.
Field-Symbols are like Pointers in Programming language e C e.
Syntax check is not effective.
Syntax :
Data : v1(4) value eabcdf.
Field-symbols <fs>.
Assign v1 to <fs>.
Write:/ <fs>.
DATA: BEGIN OF LINE,
COL1 TYPE I,
COL2 TYPE I,
END OF LINE.
DATA ITAB LIKE SORTED TABLE OF LINE WITH UNIQUE KEY COL1.
FIELD-SYMBOLS <FS> LIKE LINE OF ITAB.
DO 4 TIMES.
LINE-COL1 = SY-INDEX.
LINE-COL2 = SY-INDEX ** 2.
APPEND LINE TO ITAB.
ENDDO.
READ TABLE ITAB WITH TABLE KEY COL1 = 2 ASSIGNING <FS>.
<FS>-COL2 = 100.
<b>READ TABLE ITAB WITH TABLE KEY COL1 = 3 ASSIGNING <FS>.
MODIFY itab FROM <fs> INDEX sy-tabix</b>
IF <FS> IS ASSIGNED.
WRITE '<FS> is assigned!'.
ENDIF.
LOOP AT ITAB ASSIGNING <FS>.
WRITE: / <FS>-COL1, <FS>-COL2.
ENDLOOP.
Regards
Sreeni
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