MySQL DDL Demo

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DDL Demo

 CREATE TABLE `user` (
   `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
   `mobile` varchar(13) NOT NULL COMMENT '手机号',
   `user_alias` varchar(13) NOT NULL COMMENT '用户别名',
   `password` varchar(128) NOT NULL COMMENT '用户密码',
   `user_type` tinyint(4) unsigned DEFAULT NULL COMMENT '用户类型，1：普通用户；2：VIP会员',
   `user_state` tinyint(4) unsigned DEFAULT NULL COMMENT '用户状态',
   `reg_channel` tinyint(4) unsigned DEFAULT NULL COMMENT '注册渠道',
   `reg_time` bigint(20) unsigned NOT NULL COMMENT '注册时间',
   `last_login_time` timestamp(3) NULL DEFAULT NULL COMMENT '最后一次登录时间',
   `last_logout_time` timestamp(3) NULL DEFAULT NULL COMMENT '最后一次登出时间',
   `create_time` timestamp(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
   `update_time` timestamp(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
   PRIMARY KEY (`id`),
   UNIQUE KEY `uk_mobile` (`mobile`),
   KEY `idx_reg_channel` (`reg_channel`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

desc user