text: create database 05spring_jta CHARACTER SET utf8 COLLATE utf8_general_ci;
  
  create table `user`
  (
      `user_id`      INT          NOT NULL AUTO_INCREMENT,
      `first_name`   VARCHAR(20)  NOT NULL,
      `last_name`    VARCHAR(20)  NOT NULL,
      `age`          INT          NOT NULL COMMENT '年龄',
      `created_time` TIMESTAMP NOT NULL COMMENT '创建时间',
      `updated_time` TIMESTAMP NOT NULL COMMENT '最后修改时间',
      primary key (user_id)
  ) engine = innodb;
  