use near 'exist test charset=utf8' at line 1报错原因是为什么呀 需要怎么修改

ERROR 1064 (42000): 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 'exist test charset=utf8' at line 1

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报错原因是为什么呀 需要怎么修改

EXISTS，不是exist ，少了s

完整的SQL语句是什么样的呢