2.如果 T 表还有一字段 F0 数据类型为自动增量整型(唯一,不会重复), 而且 T 表中含有除 F0 字段外,请删除其它字段完全相同的重复多余的脏记录数据:delete t from fo not in (select min(fo) from t order by ,F2,F3,F4,F5,F6,F7 )
sorry , it's ::::delete t where fo not in (select min(fo) from t order by F1,F2,F3,F4,F5,F6,F7 )
而且 T 表中含有除 F0 字段外,请删除其它字段完全相同的重复多余的脏记录数据:delete t from fo not in (select min(fo) from t order by ,F2,F3,F4,F5,F6,F7 )