PLS-00201触发器发生错误

Question

I wrote a Trigger for the Auto increment Please find the sequence and the trigger below.

CREATE SEQUENCE WEB_FE_IPO_IPO_APPLICATION_SEQ;
CREATE OR REPLACE TRIGGER WEB_FE_IPO_IPO_APPLICATION_TRG
  BEFORE INSERT
    ON WEB_FE_IPO_IPO_APPLICATION
      REFERENCING NEW AS NEW_ROW
      FOR EACH ROW
BEGIN
SELECT WEB_FE_IPO_IPO_APPLICATION_SEQ.NEXTVAL INTO NEW_ROW.APPLICATION_ID FROM dual;
END;
/ 

My Problem is when i executing this trigger it gives me an error like below.

Error(2,1): PL/SQL: SQL Statement ignored
Error(2,52): PLS-00201: identifier 'NEW_ROW.APPLICATION_ID' must be declared
Error(2,75): PL/SQL: ORA-00904: : invalid identifier

I cant find the issue. can anyone please help?

Answer 1

You need to prefix new_row with a colon. into :new_row.application_id . Since you're on 11g, you don't need a select into , you can just do a direct assignment of the nextval . I can't see a reason to bother changing the name of the :new pseudorecord either. So I'd just do

CREATE OR REPLACE TRIGGER WEB_FE_IPO_IPO_APPLICATION_TRG
  BEFORE INSERT ON WEB_FE_IPO_IPO_APPLICATION
  FOR EACH ROW
BEGIN
  :new.application_id := WEB_FE_IPO_IPO_APPLICATION_SEQ.NEXTVAL;
END;