use dtm_busi; drop table if exists user_account; create table user_account( id int(11) PRIMARY KEY AUTO_INCREMENT, user_id int(11) UNIQUE , balance DECIMAL(10, 2) not null default '0', create_time datetime DEFAULT now(), update_time datetime DEFAULT now(), key(create_time), key(update_time) ); insert into user_account (user_id, balance) values (1, 10000), (2, 10000);