Mysql从只显示一次的表中删除

我想从表中删除只出现一次的行。 我试过这个，但它给了我错误

delete from trans where nol in (select nol from trans T1 group by T1.nol having count(*) = 1)

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在MySQL中，您不能修改SELECT部件中使用的同一个表。 对于解决方法，您需要将子查询包装到表别名中

示例查询：

delete from trans 
where nol in (SELECT nol FROM
    (select nol from trans T1 group by T1.nol having count(*) = 1) t)

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在MySQL中，您不能修改SELECT部件中使用的同一个表。 对于解决方法，您需要将子查询包装到表别名中

示例查询：

delete from trans 
where nol in (SELECT nol FROM
    (select nol from trans T1 group by T1.nol having count(*) = 1) t)

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post错误消息，执行此查询时出现的错误？post错误消息，执行此查询时出现的错误？