题解 | 创建一个actor表,包含如下列信息
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 date not null default(current_date) )
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 date not null default(current_date) )
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