题目已经先执行了如下语句:
drop table if exists actor; CREATE TABLE actor ( actor_id smallint(5) NOT NULL PRIMARY KEY, first_name varchar(45) NOT NULL, last_name varchar(45) NOT NULL, last_update DATETIME NOT NULL); insert into actor values ('3', 'WD', 'GUINESS', '2006-02-15 12:34:33');
对于表actor插入如下数据,如果数据已经存在,请忽略(不支持使用replace操作)
actor_id | first_name | last_name | last_update |
---|---|---|---|
'3' | 'ED' | 'CHASE' | '2006-02-15 12:34:33' |
insert or ignore into actor values (3,'ED','CHASE','2006-02-15 12:34:33')