建表 在这里呢我们先来建立两张有外键关联的张表。 CREATE DATABASE db0206; USE db0206; CREATE TABLE `db0206` . `tbl_dept` ( `id` INT ( 11 ) NOT NULL AUTO_INCREMENT, `deptName` VARCHAR ( 30 ), `locAdd` VARCHAR ( 40 ), PRIMARY KEY ( `id` ) ) ENGINE = INNODB CHARSET =utf8; CREATE TABLE `db0206` . `tbl_emp` ( `id` INT ( 11 ) NOT NULL AUTO_INCREMENT, `name` VARCHAR ( 20 ), `deptId` INT ( 11 ), PRIMARY KEY ( `id` ), FOREIGN KEY ( `deptId` ) REFERENCES `db0206` . `tb_dept` ( `id` ) ) ENGINE = INNODB CHARSET =utf8; /*插入数据*/ INSERT INTO tbl_dept(deptName,locAdd) VALUES ( 'RD' , 11 ); INSERT INTO tbl_dept(deptName,locAdd) VALUES