Navicatfor Mysql中添加外键方法
环境:NavicatforMysql 8.2 MySQL Sever 5.1 问题:NavicatforMysql中添加外键 解决: 方法一: 使用SQL语句创建外键: alter table 外键表 add constraint 约束名 foreign key(栏位名) references 参照表(外键栏位名) on delete restrict/set null/cascade
环境:NavicatforMysql 8.2 + MySQL Sever 5.1
问题:NavicatforMysql中添加外键
解决:
方法一:
使用SQL语句创建外键:
alter table 外键表 add constraint 约束名 foreign key(栏位名) references 参照表(外键栏位名) on delete restrict/set null/cascade on update restrict/set null/ cascade;
不指定外键的名称,mysql会自动为你创建一个外键名称:
alter table 外键表 add foreign key(栏位名) references 参照表(外键栏位名) on delete restrict/set null/cascade on update restrict/set null/cascade;
方法二:
使用图形界面。
选中表------->右键------->设计表------->外键------->填选项。
参考资料:
http://blog.163.com/lkm_1986/blog/static/14066525720106702817523/

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