如何在触发器调用的过程中使用COMMIT

Question

我有下面的触发器(mytrg)调用一个过程(myproc),如果table1中有任何插入,它将更新table2.在table2中更新数据后,我在程序中有"COMMIT"语句.但是当table1中有插入时,我得到以下错误.

Error report:
SQL Error: ORA-04092: cannot COMMIT in a trigger
ORA-06512: at "myschema.myproc", line 63
ORA-06512: at "myschema.mytrg", line 2
ORA-04088: error during execution of trigger 'myschema.mytrg'
04092. 00000 -  "cannot %s in a trigger"
*Cause:    A trigger attempted to commit or rollback.
*Action:   Rewrite the trigger so it does not commit or rollback.

**Trigger:**                                                                                        
create or replace
trigger mytrg
after insert on table1
for each row
begin
myschema.myproc(:new.ID, :new.NAME, :new.TYPE_CODE, :new.LANGUAGE);
end;

需要知道如何提交更新.

谢谢

Answer 1

你不能在触发器中有一个COMMIT.一旦提交到table1的INSERT,就会提交您的UPDATE.

但要实现您想要的功能,您可以使用自治事务.例如,

CREATE OR REPLACE TRIGGER mytrg
AFTER INSERT ON table1 FOR EACH ROW

DECLARE    
   PRAGMA AUTONOMOUS_TRANSACTION;    
BEGIN    
   myschema.myproc(:new.ID, :new.NAME, :new.TYPE_CODE, :new.LANGUAGE);    
   COMMIT;    
END;