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
);
/*第2类方法：
DROP TABLE IF EXISTS actor;
CREATE TABLE actor(
actor_id smallint(5) NOT NULL,
first_name varchar(45) NOT NULL,
last_name varchar(45) NOT NULL,
last_update date NOT NULL,
PRIMARY KEY(actor_id)
);

*/