數據庫報(errno: 150)解決方法

原創 年少轻狂12138 2020-06-23 03:56

錯誤原因有四：

1、外鍵的引用類型不一樣，主鍵是int外鍵是char 
2、找不到主表中 引用的列 
3、主鍵和外鍵的字符編碼不一致 
4、還有要建立外鍵的話，要先建立索引。沒有建立索引也會出錯。

我的錯誤原因是1，外鍵的引用類型不一樣,但是改的時候卻出現了錯誤：

解決辦法就是直接刪除相關表用hibernate 重新生成

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