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1  test1  2009-9-10
1  test2  2009-9-11
2  testg  2009-9-10
3  testu  2009-9-11
3  testn  2009-9-10
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1  test2  2009-9-11
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3  testu  2009-9-11
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1¡¢²éÕÒ±íÖжàÓàµÄÖظ´¼Ç¼£¬Öظ´¼Ç¼ÊǸù¾Ýµ¥¸ö×ֶΣ¨peopleId£©À´ÅжÏ

select * from people
where peopleId in (select peopleId from people group by peopleId having count(peopleId) > 1)
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select * from testtable
where numeber in (select number from people group by number having count(number) > 1 )
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2¡¢É¾³ý±íÖжàÓàµÄÖظ´¼Ç¼£¬Öظ´¼Ç¼ÊǸù¾Ýµ¥¸ö×ֶΣ¨peopleId£©À´Åжϣ¬Ö»ÁôÓÐrowid×îСµÄ¼Ç¼
delete from people
where peopleId in (select peopleId from people group by peopleId having count(peopleId) > 1)
and rowid not in (select min(rowid) from people group by peopleId having count(peopleId )>1)

3¡¢²éÕÒ±íÖжàÓàµÄÖظ´¼Ç¼£¨¶à¸ö×ֶΣ©
select * from vitae a
where (a.peopleId,a.seq) in (sele


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