Mysql寫入數據的錯誤，很容易忽視掉！

先說錯誤，在寫入數據庫的時候一直報錯「 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'by agent_id,name ) as a' at line 2 [ SQL語句 ] 

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