同一個表記錄某列值拷到對應列中

原創 iteye_16248 2020-02-23 18:28

 

我想在mysql數據庫同一表中，把一條記錄的值賦給另一條記錄的相應列。如下所示，原始數據、想用的sql及報錯。



應該是mysql不支持這樣的寫法吧？還是我寫錯了？

 

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