[英]SQL TRIGGER: Insert deleted row into a table at once without listing every column as INSERT values
我有一个已经可以工作的代码,但是我正在寻找一种写一条sql语句的方法,当从另一张表中删除了一行时,该语句可以插入到表中,而不必在插入语句下列出每一列作为值。 对于一个表有许多列的情况,它确实派上用场。 这是我当前的代码,希望有人可以帮助我修改它。
CREATE TABLE `history_tblvendorpayment` LIKE `tblvendorpayment`;
ALTER TABLE `history_tblvendorpayment`
MODIFY COLUMN `id` INT UNSIGNED NOT NULL;
ALTER TABLE `history_tblvendorpayment` DROP PRIMARY KEY;
ALTER TABLE `history_tblvendorpayment`
ADD COLUMN `history_id` INT UNSIGNED NOT NULL;
ALTER TABLE `history_tblvendorpayment`
ADD CONSTRAINT PRIMARY KEY (`history_id`);
ALTER TABLE `history_tblvendorpayment`
MODIFY `history_id` INT UNSIGNED NOT NULL AUTO_INCREMENT;
DELIMITER $$
DROP TRIGGER `delete_tblvendorpayment`$$
CREATE TRIGGER `delete_tblvendorpayment` BEFORE DELETE on `tblvendorpayment`
FOR EACH ROW
BEGIN
INSERT INTO history_tblvendorpayment (id, created_by,
vendor_id, amount_payable,
amount_payed, description,
depositor_name, gl_code_credit,
gl_code_debit, txn_date,
pay_date, ref_id,
bank, currency,
date, md_approval,
status, sage_status,
memo_id)
VALUES (
OLD.id, OLD.created_by,
OLD.vendor_id, OLD.amount_payable,
OLD.amount_payed, OLD.description,
OLD.depositor_name, OLD.gl_code_credit,
OLD.gl_code_debit, OLD.txn_date,
OLD.pay_date, OLD.ref_id,
OLD.bank, OLD.currency,
OLD.date, OLD.md_approval,
OLD.status, OLD.sage_status,
OLD.memo_id
);END$$
DELIMITER ;
我希望这样的事情:
DELIMITER $$
DROP TRIGGER `delete_tblvendorpayment`$$
CREATE TRIGGER `delete_tblvendorpayment` BEFORE DELETE on `tblvendorpayment`
FOR EACH ROW
BEGIN
INSERT INTO history_tblvendorpayment
SELECT * FROM OLD;
END$$
DELIMITER ;
如果要插入原始表中的所有列,则可以将触发器简化为:
CREATE TRIGGER `delete_tblvendorpayment` BEFORE DELETE on `tblvendorpayment`
FOR EACH ROW
BEGIN
INSERT INTO history_tblvendorpayment
SELECT *
FROM tblvendorpayment
WHERE id = OLD.id;
END
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