在phpmyadmin中添加FOREIGN KEY时出错？

Question

  

可能重复：
  Setting up foreign keys in phpMyAdmin?

ALTER table podcategory add FOREIGN KEY (category_id) 
           REFERENCES category(category_id)
ON UPDATE RESTRICT
ON DELETE CASCADE

当我在phpmyadmin发送脚本时，我收到错误

Can't create table './C292729_T25027/#sql-be0_30ed238.frm' (errno: 150)

如何添加此FOREIGN KEY？

Answer 1

尝试这种类型：

ALTER TABLE `aaaa` ADD CONSTRAINT fk_comp_id FOREIGN KEY ( `comp_id` ) REFERENCES `comps` ( `id` ); 

或者这个SO答案/问题可能会帮助您确定： Setting up foreign keys in phpMyAdmin?