[Err] 1052 - Column 'classname' in where clause is ambiguous

原創 asstsui 2020-02-20 17:22

在這裏插入圖片描述

問題原因：
classname不明確，沒有指定表，系統不能準確查到
解決辦法：
把錯誤的字段明確歸屬表，如下修改
在這裏插入圖片描述

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