delete from tablename where id not in (select id from (select min(id) as id from tablename group by key) as b);
– key是重复的字段
mysql删除某个字段重复的数据
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2022-11-30
delete from tablename where id not in (select id from (select min(id) as id from tablename group by key) as b);
– key是重复的字段
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