text: create table if not exists USER
  (
      ID           INT auto_increment
          primary key comment 'ID',
      USERNAME     VARCHAR(45)                          not null
          unique comment '用户名',
      PASSWORD_MD5 VARCHAR(45)                          not null comment '密码MD5',
      EMAIL        VARCHAR(45) comment '邮箱',
      SCREEN_NAME  VARCHAR(45) comment '显示名称',
      LOGGED       TIMESTAMP  default CURRENT_TIMESTAMP not null comment '最后登录时间',
  
      DELETED      TINYINT(1) default 0                 not null comment '逻辑删除 0:未删除 1:已删除',
      CREATED      TIMESTAMP  default CURRENT_TIMESTAMP not null comment '创建时间',
      MODIFIED     TIMESTAMP  default CURRENT_TIMESTAMP not null on update CURRENT_TIMESTAMP comment '修改时间'
  ) comment '用户表' charset = utf8;