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CREATE TABLE reservation(
reserv_id int,
reserv_date numeric(8,0),
start_date numeric(8,0) NOT NULL,
end_date numeric(8,0) NOT NULL,
payment ENUM('Cash','Credit Card','Check'),
PRIMARY KEY(reserv_id),
CHECK (reserv_date<start_date),
CHECK (start_date<end_date)
)ENGINE=InnoDB;
delimiter //
create trigger date_check
before insert on reservation
for each row
begin
IF ((new.reserv_date > new.start_date) or (new.start_date > new.end_date)) THEN SIGNAL 'error message';
END IF;
end;//
delimiter ;
我试图创建这个触发器在MySQL,但它不断抛出我下面的错误:MySQL的触发语法
ERROR 1064(42000):你在你的SQL语法错误;检查与您的MySQL服务器版本相对应的手册,以找到在''错误信息'附近使用的正确语法; END IF; end'at line 5
我的错误是什么?