中国开发网: 论坛: 程序员情感CBD: 贴子 836041
haitao
3个select是没错,错(当然是我认为错)在 where rownum<=3000出现的层次,我认为它应该在再外一层,才符合昨天说的通用模式
select * from( select rownum rn ,c.* from (select
T3.rowid T3_id,
T3.recno, T3.pdate

from T3
JOIN T2 on T2.idnum=T3.idnum and T2.recno=T3.recno
JOIN T1 on T3.idnum=T1.idnum

where T3.dumpstatus<>'-'
and (T1.OSTATUS not in ('C','P'))
and T2.PCODE = 'IC'
and T1.confirm = 'Y'
and (T3.pdate>=to_date('20100401','yyyymmdd'))
and (T3.pdate<=to_date('20100531','yyyymmdd'))
and (T3.dumpstatus <> 'C')

Order By T3.idnum desc,T3.recno asc, T3.pdate asc

)c where rownum<=3000
) where rn >1500

我认为就是最后2行应该改为
)c
) where rn >1500 and rn<=3000

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