Как отследить изменение контрагентов? : Супермаг Плюс (Супермаг 2000)

   	 	 	 	 	 	 	 	  create table SMsupplycaseHist
(
  EVENTTIME DATE default SYSDATE not null,
  RECID     NUMBER default 0 not null,
  ARTICLE         VARCHAR2(50) not null,
  IDSUPPLIER      NUMBER(10) not null,
  AMOUNT          NUMBER(14,3) not null,
  SUPPLIERARTICLE VARCHAR2(100),
 WSNAME    VARCHAR2(100),
 USERNAME  VARCHAR2(30),
 OSUSER    VARCHAR2(30)
)
tablespace USERS
  pctfree 10
 initrans 1
 maxtrans 255
 storage
  (
    initial 128K
   minextents 1
   maxextents unlimited
  );
 

 create or replace trigger SmSupplyCaseLog after insert or update or delete of Article,Amount
on SmSupplyCase
for each row
begin
	if inserting or updating then
		insert into SMsupplycaseHist(Article,IdSupplier,Amount,supplierarticle)
			values(:new.Article,:new.IdSupplier,:new.Amount,:new.supplierarticle);
else
insert into SMsupplycaseHist(Article,IdSupplier,Amount,supplierarticle)
			values(:old.Article,:old.IdSupplier,:old.Amount,:old.supplierarticle);
	end if;
end;