小编Was*_*eed的帖子

我有一个无法运行的 SQL 事务查询。谁能告诉我为什么？我也无法运行它preparedstament.executequery();。

START TRANSACTION;
SELECT total_installment_remaining  FROM payment_loan WHERE loan_id = 1 FOR UPDATE;
UPDATE payment_loan SET total_installment_remaining =total_installment_remaining-1 WHERE loan_id = 1;
COMMIT;