如何使用 MySQL 从 db2 中的 db1 引用外键

Question

I have two MySQL databases: master and slave . The master db contains the memberid field. How can I reference memberid in the slave db? This is what I've tried using the slave db with no success:

DROP TABLE IF EXISTS `attend_date_temp`;
CREATE TABLE `attend_date_temp` (
`clientid` int(10) unsigned NOT NULL,
`groupid` int(10) unsigned NOT NULL,
`memberid` int(10) unsigned NOT NULL,
KEY `clientid` (`clientid`),
KEY `memberid` (`memberid`),
CONSTRAINT `attend_date_temp_ibfk_1` FOREIGN KEY (`clientid`) REFERENCES `clients` (`clientid`) ON DELETE CASCADE ON UPDATE CASCADE,
CONSTRAINT `attend_date_temp_ibfk_2` FOREIGN KEY (`memberid`) REFERENCES `master.members` (`memberid`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8

When I view the memberid foreign key in that table, I get this message:

Table 'slave.master.members' doesn't exist.

Can someone tell me what I'm doing wrong?This is the reference I used. Thanks.

Answer 1

REFERENCES `master.members`

should be:

REFERENCES `master`.`members`

Otherwise, it tries to find a table called master.members in the slave database.