錯誤在phpmyadmin中添加FOREIGN KEY？

Question

可能重複：
Setting up foreign keys in phpMyAdmin?

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

當我在phpMyAdmin發送腳本中，我得到錯誤

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

如何增加這個外鍵？

Answer 1

嘗試這類型：

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

還是這個蘇答案/問題也許能幫助你肯定的： Setting up foreign keys in phpMyAdmin?