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sql删除重复数据保留一条 sql 怎么删除重复数据只保留一条?
mysql 如何删除重复的数据并保留一行 sql删除重复数据只保留一条 delete from t_prices_jg where fid not in(select min(fid)from t_prices_jg group by fi...
mysql 如何删除重复的数据并保留一行 sql删除重复数据只保留一条 delete from t_prices_jg where fid not in(select min(fid)from t_prices_jg group by fi...