oracle – 怎样从一个触发器的进程中修复这个Mutating表

此触发器将插入的值转达给进程,该进程将这些值插入另一个表中.我收到了一个变异表错误.我奈何才气办理这个题目？

CREATE OR REPLACE TRIGGER ADD_INVOICE
BEFORE INSERT OR UPDATE OF APP_NO,C_NO ON APPOINTMENT
FOR EACH ROW
DECLARE
BEGIN

POP_INVOICE(:NEW.APP_NO,:NEW.C_NO,:NEW.APP_DATE);

END;
/

CREATE OR REPLACE PROCEDURE POP_INVOICE(
I_APP_NO IN INVOICE.APP_NO%TYPE,I_C_NO IN INVOICE.C_NO%TYPE,I_INV_DATE IN INVOICE.INV_DATE%TYPE)
AS
CURSOR C_POP IS SELECT PRICE FROM TREATMENT T,APPOINTMENT A 
WHERE T.TRT_NO=A.TRT_NO
AND A.APP_NO=I_APP_NO;

V_BILL INVOICE.BILL%TYPE;
BEGIN

OPEN C_POP; 
FETCH C_POP INTO V_BILL;

UPDATE INVOICE
SET INV_NO=INV_IDSEQ.NEXTVAL,APP_NO=I_APP_NO,C_NO=I_C_NO,BILL=V_BILL,INV_DATE=I_INV_DATE;

END;
/

办理要领

我以为应该这样做,固然我无法搜查数据库.

CREATE OR REPLACE TRIGGER ADD_INVOICE

BEFORE INSERT OR UPDATE OF APP_NO,:NEW.APP_DATE,:NEW.TRT_NO);

END;
/

修订后的措施：

CREATE OR REPLACE PROCEDURE POP_INVOICE(
I_APP_NO IN INVOICE.APP_NO%TYPE,I_INV_DATE IN INVOICE.INV_DATE%TYPE,I_TRT_NO IN APPOINTMENT.TRT_NO%TYPE
)
AS

CURSOR C_POP IS SELECT PRICE 
FROM TREATMENT T
WHERE T.TRT_NO = I_TRT_NO;

V_BILL INVOICE.BILL%TYPE;

BEGIN

OPEN C_POP; 
FETCH C_POP INTO V_BILL;
CLOSE C_POP;

INSERT INVOICE
  (inv_no,app_no,c_no,bill,inv_date)
VALUES
  (INV_IDSEQ.NEXTVAL,I_APP_NO,I_C_NO,V_BILL,I_INV_DATE);


END;
/

（编辑：湖南网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!