Updating flag using itab

[Former Member]

Hi Guys

I need to update flag to X for all flag = I from my ztable. Ztable is a database table with many entries (10000's). I currently have code that implements this functionality but performance is very imp here so I need to fine tune the code, perhaps putting it in itab and modifying the entire table from it should work

This is what I have so far

  update ztable
  set flag = 'X'
  where flag = 'I'.

[Former Member]

Hi,

Please try this.

loop at itab.
 move 'X' to itab-flag.
 modify itab.
endloop.

modify ztable from table itab. 

OR

loop at itab.
  update ztable
  set flag = 'X'
  where kunnr = itab-kunnr
    and vbeln = itab-vbeln.
endloop.

Regards,

Ferry Lianto

[Former Member]

loop at itab where flag = 'l'.

itab-flag = 'X'.

modify itab index sy-tabix.

endloop.

modify ztable from table itab.

[Former Member]

Hi,

If you use the SET keyword, then you need to use all the key fields in the where condition, so better to dump all the data into a Internal table, then use below code

LOOP AT ITAB.
 update ztable
  set flag = 'X'
  where  Keyword1 = Itab-keyword1 and
            Keyword = Itab-keyword2 and
           flag = 'I'.

ENDLOOP.

Regards

Sudheer