use sop;

CREATE TABLE `system_lock` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `content` varchar(64) NOT NULL DEFAULT '',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_content` (`content`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `system_lock` (`id`, `content`) VALUES  (1,'lock');