Capturing Log changes made to Z Table

Question

Hi All,   
      I have to detect changes for a Z-field in a Z-table. I’m going to use CDHDR table and CDPOS table to check if any changes are made to field. I enabled log data changes in technical settings of Z-table and also change document for the Z-field. I created an object class (Z….) and generated update program and function modules. It generated a FM “ZMMARC_WRITE_DOCUMENT”. I think this will write the change document records to CDHDR. I checked in SCU3, there were activation logs and also checked the entry in TCDOB.it was ok. But when this field is being changed by a custom transaction (YM11, YM12) this entry (change records) does not go into CDHDR table. So I’m not able to detect any change records for the particular field ( and the object class).
Am I missing any step here? Because, I read somewhere that the function module “ZMMARC_WRITE_DOCUMENT” has to be called in all the programs that update the Z-table. Can you please provide any help on this? Any help on this would be appreciated.
Thanks.
Regards
s.anilkumar

Answer 1

Here are the errors I'm getting.
CONNECT SCOTT/TIGER
Connected.
create or replace trigger audit_tablea
after insert or update or delete on tablea
for each row
begin
insert into tableb values(
:new.field1,
:new.field2,
:old.field1,
:old.field2)
end;
Warning: Trigger created with compilation errors.
insert into tablea values('hello','world')
ERROR at line 1:
ORA-04098: trigger 'SCOTT.AUDIT_TABLEA' is invalid and failed re-validation