这里是我的表:
DROP TABLE IF EXISTS `tbl_comments`;
CREATE TABLE IF NOT EXISTS `tbl_comments` (
`id` int(11) NOT NULL auto_increment,
`topic_id` int(11) NOT NULL,
`user_id` int(11) NOT NULL,
`text` text NOT NULL,
`create_dt` datetime NOT NULL,
`update_dt` timestamp NULL default CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `topic_id_2` (`topic_id`),
KEY `user_id` (`user_id`),
CONSTRAINT `tbl_comments_ibfk_2` FOREIGN KEY (`user_id`) REFERENCES `tbl_users` (`id`),
CONSTRAINT `tbl_comments_ibfk_1` FOREIGN KEY (`topic_id`) REFERENCES `tbl_topics` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;
DROP TABLE IF EXISTS `tbl_users`;
CREATE TABLE IF NOT EXISTS `tbl_users` (
`id` int(11) NOT NULL auto_increment,
`username` varchar(20) NOT NULL default '',
`password` varchar(128) NOT NULL default '',
`email` varchar(128) NOT NULL default '',
`activkey` varchar(128) NOT NULL default '',
`superuser` int(1) NOT NULL default '0',
`status` int(1) NOT NULL default '0',
`create_at` timestamp NOT NULL default CURRENT_TIMESTAMP,
`lastvisit_at` timestamp NOT NULL default '0000-00-00 00:00:00',
PRIMARY KEY (`id`),
UNIQUE KEY `user_username` (`username`),
UNIQUE KEY `user_email` (`email`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8;
DROP TABLE IF EXISTS `tbl_topics`;
CREATE TABLE IF NOT EXISTS `tbl_topics` (
`id` int(11) NOT NULL auto_increment,
`group_id` int(11) NOT NULL,
`user_id` int(11) NOT NULL,
`header` varchar(255) NOT NULL,
`text` text NOT NULL,
`create_dt` datetime NOT NULL,
`update_dt` timestamp NULL default CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `user_id` (`user_id`),
KEY `group_id` (`group_id`),
CONSTRAINT `tbl_topics_ibfk_1` FOREIGN KEY (`group_id`) REFERENCES `tbl_groups` (`id`),
CONSTRAINT `tbl_topics_ibfk_2` FOREIGN KEY (`user_id`) REFERENCES `tbl_users` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;
现在我有错误,当我尝试导入:#1005 - 无法创建表“kobeco_yii.tbl_comments”(错误:150)(详细说明:Percona的-XtraDB,支持事务,行级锁和外键)