这是由序列生成并通过 ACCOUNT_NUMBER_TRIG 触发器插入 ACCOUNTS 表中的 ACCOUNT_NUMBER 值,我需要通过触发器 ACCOUNTS_TRANSCATION_TRIG_1 将其插入到 TRANSACTION TABLE 中
CREATE OR REPLACE TRIGGER ACCOUNT_NUMBER_TRIG
BEFORE INSERT
ON ACCOUNTS
FOR EACH ROW
WHEN (NEW.ACCOUNT_NUMBER is not null)
DECLARE
V_ACC_NO ACCOUNTS.ACCOUNT_NUMBER%TYPE;
BEGIN
SELECT ACCOUNT_NO_SEQ.nextvaL INTO V_ACC_NO FROM DUAL;
:NEW.ACCOUNT_NUMBER := V_ACC_NO;
END ACCOUNT_NUMBER_TRIG;
------------------------------------------------------------------------------
CREATE OR REPLACE TRIGGER ACCOUNTS_TRANSCATION_TRIG_1 AFTER
INSERT ON ACCOUNTS FOR EACH ROW DECLARE CURSOR ACCOUNTS_CUR IS
SELECT ACCOUNT_NUMBER FROM ACCOUNTS;
DECLARE
TEMP_1 NUMBER(5,0);
BEGIN
SELECT ACCOUNTS.ACCOUNT_NUMBER FROM INSERTED INTO TEMP_1
OPEN ACCOUNTS_CUR;
INSERT
INTO TRANSACTIONS VALUES
(
SYSDATE,
- :NEW.ACCOUNT_NUMBER,
'NEW ACCOUNT',
0
);
CLOSE ACCOUNTS_CUR;
END ACCOUNTS_TRANSCATION_TRIG_1;
最佳答案
CREATE TABLE accounts(
ACCOUNT_NUMBER number,
ACCOUNT_NAME varchar2(20)
);
CREATE SEQUENCE ACCOUNT_NO_SEQ;
CREATE OR REPLACE TRIGGER ACCOUNT_NUMBER_TRIG
BEFORE INSERT
ON ACCOUNTS
FOR EACH ROW
WHEN (NEW.ACCOUNT_NUMBER is not null)
BEGIN
:NEW.ACCOUNT_NUMBER :=ACCOUNT_NO_SEQ.nextvaL;
END ACCOUNT_NUMBER_TRIG;
/
CREATE TABLE transactions(
TR_DATE date,
TR_ACCOUNT_NUMBER number,
TR_TYPE varchar2(20),
TR_somenumber int
);
CREATE OR REPLACE TRIGGER ACCOUNTS_TRANSCATION_TRIG_1 AFTER
INSERT ON ACCOUNTS FOR EACH ROW
BEGIN
INSERT INTO TRANSACTIONS( TR_DATE, TR_ACCOUNT_NUMBER, TR_TYPE, TR_somenumber )
VALUES
(
SYSDATE,
:NEW.ACCOUNT_NUMBER,
'NEW ACCOUNT',
0
);
END ACCOUNTS_TRANSCATION_TRIG_1;
/
INSERT INTO accounts( ACCOUNT_NUMBER, ACCOUNT_NAME ) VALUES (1111,'My Name' );
select * from accounts;
ACCOUNT_NUMBER ACCOUNT_NAME
-------------- --------------------
2 My Name
select * from transactions;
TR_DATE TR_ACCOUNT_NUMBER TR_TYPE TR_SOMENUMBER
---------- ----------------- -------------------- -------------
2017/07/11 2 NEW ACCOUNT 0
关于sql - 我如何访问由触发器更新的值?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45041815/