how to fire trigger on column change using oracle

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1.44/5 (2 votes)

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create or replace trigger trg_m_service
after update on m_service
for each row
declare

SQL

begin
 if updating(SRM_THEFT_CASE_STATUS)then
  update m_servicemaster@collection
  set srm_theft_tag@collection =:new.SRM_THEFT_CASE_STATUS,
  srm_theft_amt@collection =:new.srm_theft_amt,srm_modify_date=sysdate
  where :new.srm_service_no=srm_service_no@collection;
 end if;
end;

Posted 30-Dec-11 19:09pm

Bhaumik Lathia

Updated 30-Dec-11 19:15pm

Mehdi Gholam

v2

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Spopy · Answer 1 · 2012-01-16T03:52:00

Solution 1

You can use prefix :Old and :New to test if column value as changed

create or replace trigger trg_m_service
after update on m_service
for each row
Begin
If :Old.SRM_THEFT_CASE_STATUS != :New.SRM_THEFT_CASE_STATUS Then

-- your update

End If;

End;

Posted 16-Jan-12 3:52am

Spopy

Bhaumik Lathia · Answer 2 · 2012-09-06T20:53:00

Solution 2

SQL

begin
 if updating(SRM_THEFT_CASE_STATUS)then
  update m_servicemaster@collection
  set srm_theft_tag@collection =:new.SRM_THEFT_CASE_STATUS,
  srm_theft_amt@collection =:new.srm_theft_amt,srm_modify_date=sysdate
  where :new.srm_service_no=srm_service_no@collection;
 end if;
end;

Posted 6-Sep-12 20:53pm

Bhaumik Lathia