这是我的触发器,我收到MySQL语法错误。我想减少sms_index 表 sms_count 列值的余额。
CREATE TRIGGER sms_log_update AFTER UPDATE ON sms_index
FOR EACH ROW
BEGIN
IF NEW.approved_status = '1' THEN
UPDATE sms_package SET balance = (balance - OLD.sms_count) WHERE group_id = OLD.ins_group_id;
END IF;
END;
错误消息:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 5
答案 0 :(得分:3)
您的代码看起来是正确的,除了分隔符可能存在的问题。请尝试以下方法:
DELIMITER //
CREATE TRIGGER sms_log_update AFTER UPDATE ON sms_index
FOR EACH ROW
BEGIN
IF NEW.approved_status = '1' THEN
UPDATE sms_package SET balance = (balance - OLD.sms_count)
WHERE group_id = OLD.ins_group_id;
END IF;
END;
DELIMITER ;
但是,就像存储例程一样,如果使用mysql程序定义执行多个语句的触发器,则需要重新定义mysql语句分隔符,以便可以使用;触发器定义中的语句分隔符。