Oracle 修改 新增 觸發器 針對字段修改 觸發器 誤刪Oracle表、數據、觸發器找回 閃回查詢

emmmm 寫這個博客心情很復雜，，，本來這個觸發器早就寫好了，后來發生點事就寫個博客當個備份吧，就當留紀念了；話不多數上問題以及SQL：

 

問題：

　　

1. 在ABONPB表上增加一個觸發器，針對車牌號字段做update操作且new:傳入的mduser字段為API，status為P時，向PA_BANK_REGNO_RECORD表中insert 一條記錄，sync字段為0，修改次數為之前的次數加1，其余字段參考字段意義。（YC）
2. 當insert進ABONPB時新案件時，同理lla_code為MA  為條件也要觸發上班觸發器，計數加一（后來添加）

 更新：提交一個閃回查詢找誤刪數據的SQL，類似的網上還有很多就不一一舉例了；；；；；

　　閃回查詢：：

select * from dba_source a where a.type='TRIGGER';
SELECT * from dba_source a where a.name LIKE  '%ABONPB_%';



SELECT NAME, TEXT
      FROM DBA_SOURCE AS OF TIMESTAMP TO_TIMESTAMP('2018-06-05 12:20:00', 'yyyy-mm-dd hh24:mi:ss')
      WHERE OWNER = 'ACSPRD'
      AND TYPE = 'PROCEDURE'
      AND NAME LIKE  '%ABONPB_UPDATE%';

 

 

觸發器解決：

 

CREATE OR REPLACE TRIGGER ABONPB_UPDATE_20180615
  BEFORE UPDATE OR INSERT ON ABONPB_20180615
  FOR EACH ROW
DECLARE
  IXEST             INTEGER;
  CHAGE             INTEGER;
  IXEST2             INTEGER;
  CHAGE2             INTEGER;
BEGIN
  IF updating('regnr') AND :OLD.MDUSR = 'API' AND :OLD.STATUS = 'P'AND :old.Regnr != :new.Regnr THEN
    SELECT COUNT(1) INTO IXEST FROM EMAPIII.PA_BANK_REGNO_RECORD T WHERE T.IDCARD_NO = :OLD.POLICYNR AND T.CARD_NO = :OLD.VIN AND  T.LASTNAME = :OLD.LASTNAME;
    IF IXEST = 0  THEN
      INSERT INTO EMAPIII.PA_BANK_REGNO_RECORD
        (ID,
         IDCARD_NO,
         CARD_NO,
         LASTNAME,
         REGNO,
         CHANGE_TIMES,
         CHANGE_TIME,
         CONTRACTCODE,
         SERIE,
         SYNC,
         ACCTNO)
      VALUES
        (EMAPIII.PA_BANK_REGNO_RECORD_SEQ.NEXTVAL,
         :NEW.VIN,
         :NEW.POLICYNR,
         :NEW.LASTNAME,
         :NEW.REGNR,
         0,
         SYSDATE,
         :NEW.LCO_LNA_CODE,
         :NEW.SERIE,
         0,
         :NEW.SUBNUMBER);

    ELSE
      SELECT T.CHANGE_TIMES INTO CHAGE FROM EMAPIII.PA_BANK_REGNO_RECORD T WHERE T.IDCARD_NO = :OLD.POLICYNR AND T.CARD_NO = :OLD.VIN  AND T.LASTNAME = :OLD.LASTNAME;

      UPDATE EMAPIII.PA_BANK_REGNO_RECORD
         SET REGNO =:new.Regnr, CHANGE_TIMES = CHAGE+1 , CHANGE_TIME = SYSDATE
       WHERE IDCARD_NO = :OLD.POLICYNR
         AND CARD_NO = :OLD.VIN
         AND LASTNAME = :OLD.LASTNAME;

    END IF;
    
  END IF;
  IF  :new.Lla_Code='MA'THEN 
     SELECT COUNT(1) INTO IXEST2 FROM EMAPIII.PA_BANK_REGNO_RECORD T WHERE T.IDCARD_NO = :new.POLICYNR AND T.CARD_NO = :new.VIN AND  T.LASTNAME = :new.LASTNAME;
    IF IXEST2 = 0  THEN
      INSERT INTO EMAPIII.PA_BANK_REGNO_RECORD
        (ID,
         IDCARD_NO,
         CARD_NO,
         LASTNAME,
         REGNO,
         CHANGE_TIMES,
         CHANGE_TIME,
         CONTRACTCODE,
         SERIE,
         SYNC,
         ACCTNO)
      VALUES
        (EMAPIII.PA_BANK_REGNO_RECORD_SEQ.NEXTVAL,
         :NEW.VIN,
         :NEW.POLICYNR,
         :NEW.LASTNAME,
         :NEW.REGNR,
         0,
         SYSDATE,
         :NEW.LCO_LNA_CODE,
         :NEW.SERIE,
         0,
         :NEW.SUBNUMBER);

    ELSE
      SELECT T.CHANGE_TIMES INTO CHAGE2 FROM EMAPIII.PA_BANK_REGNO_RECORD T WHERE T.IDCARD_NO = :new.POLICYNR AND T.CARD_NO = :new.VIN  AND T.LASTNAME = :new.LASTNAME;

      UPDATE EMAPIII.PA_BANK_REGNO_RECORD
         SET REGNO =:new.Regnr, CHANGE_TIMES = CHAGE2+1 , CHANGE_TIME = SYSDATE
       WHERE IDCARD_NO = :new.POLICYNR
         AND CARD_NO = :new.VIN
         AND LASTNAME = :new.LASTNAME;

    END IF;
  
    END IF;
END;

 

ps：最后的最后一定要注意！！！！！！刪除表時一定要備份該表的觸發器、索引等，，，，，說多了都是淚啊！！！！！再然后，誤刪了沒備份可以試試Oracle的閃回查詢，運氣好的話可以找回，，，

 

以上！！！