Modify internal table

[Former Member]

Hi all,

i got 5 record in my internal table. How can i modify the data in the 4th record.

Assume 4th record now is 'abc'. i want to change it to 'xyz'. My internal still contain 5 records.

How can i do it?

Thks

[RichHeilman]

data: begin of itab occurs 0,
        field1(10) type c,
        end of itab.
data: wa like line of itab.

wa-field1 = 'XYZ'.
modify itab from wa index 4.

Regards,

RIch Heilman

[Former Member]

Okie..What happen if i duno the index no but only a certain value in the itab field

assume i know the field itab-admino

i want to modify the field itab-name from 'gary' to 'peter'.

How can i do it? thks.

[RichHeilman]

basically the fool proof way is to read the table using the READ statement based on some KEY field, then move the new value to the field, and MODIFY it using the WA and specifing the INDEX.

read table itab into wa with key admino = '12345'.
if sy-subrc  = 0.
   itab-name = 'Peter'.
   modify itab from wa index sy-tabix.
endif.

Regards,

Rich Heilman

[Former Member]

okie.

Can u provide me the data type for wa also. Thanks

[RichHeilman]

WA would be typed like a line of your internal table. So say that you internal table, ITAB is typed like so..

data: itab type table of t001.

The WA would be typed like line of ITAB

data: wa like line of itab.

Regards,

Rich Heilman

[Former Member]

i test the program. But the value still remain unchanged. Below is my code. Pls help me to look thru . Thk.

Data : Begin of itab occurs 10.

firstname(30) type c,

lastname(30) type c,

End of itab.

Data: wa like line of itab.

*Add some value to the itab

itab-firstname = 'gary'.

itab-lastname = 'chen'.

append itab.

itab-firstname = 'pete'.

itab-lastname = 'zhang'.

append itab.

read table itab into wa with key firstname = 'pete'.

if sy-subrc = 0.

itab-lastname = 'lin'.

modify itab from wa index sy-tabix.

endif.

*check the itab for lastname change

loop at itab.

write: / itab-firstname.

write: itab-lastname.

endloop.

result: i still gt back the lastname as 'zhang' instead of the modify value 'lin'.

Pls help . Thank

[Former Member]

Solved on my own mistake. Thank for the fast reply..

[gopi_narendra]

describe table TAB lines N. " N gives the no of rows in ITAB
read table ITAB index N-1. " supposing that you wnat to edit the last but one record
  IF sy-subrc = 0.
    ITAB-FIELD1 = 'XYZ'.
    modify ITAB.
    clear : ITAB.
  ENDIF. 

Regards

Gopi

[Former Member]

Assumed your table is itab and the tables workarea is ls_wa

ls_wa = 'xyz'.

modify itab from ls_wa index 4.

That's it.

Regards,

Michael