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1¡¢²éÕÒ±íÖжàÓàµÄÖØ¸´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)
2¡¢É¾³ý±íÖжàÓàµÄÖØ¸´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±íÖжàÓàµÄÖØ¸´¼Ç¼£¨¶à¸ö×ֶΣ©
select * from vitae a
where (a.peopleId,a.seq) in   (select peopleId,seq from vitae group by peopleId,seq  having count(*) > 1)
4¡¢É¾³ý±íÖжàÓàµÄÖØ¸´¼Ç¼£¨¶à¸ö×ֶΣ©£¬Ö»ÁôÓÐrowid×îСµÄ¼Ç¼
delete from vitae a
where (a.peopleId,a.seq) in   (select peopleId,seq from vitae group by peopleId,seq having count(*) > 1)
and rowid not in (select min(rowid) from vitae group by peopleId,seq having count(*)>1)
5¡¢²éÕÒ±íÖжàÓàµÄÖØ¸´¼Ç¼£¨¶à¸ö×ֶΣ©£¬²»°üº¬rowid×îСµÄ¼Ç¼
select * from vitae a
where (a.peopleId,a.seq) in   (select peopleId,seq from vitae group by peopleId,seq having count(*) > 1)
and rowid not in (select min(rowid) from vitae group by peopleId,seq having count(*)>1)
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ÔÚA±íÖдæÔÚÒ»¸ö×ֶΓname”£¬
¶øÇÒ²»Í¬¼Ç¼֮¼äµÄ“name”ÖµÓпÉÄÜ»áÏàͬ£¬
ÏÖÔÚ¾ÍÊÇÐèÒª²éѯ³öÔڸñíÖеĸ÷¼Ç¼֮¼ä£¬“name”Öµ´æÔÚÖØ¸´µÄÏ
Select Name,Count(*) from A Group By Name Having Count(*) > 1
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Select Name,sex,Count(*) from A Group By Name,sex Having Count(*) > 1
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declare @max integer,@id integer
declare cur_rows cursor local for select Ö÷×Ö¶Î,count(*) from ±íÃû group by Ö÷×Ö¶Î having count(*) >£» 1
open cur_rows
fetch cur_rows into @id,@max
while @@fetch_s


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set r=%time%
echo %r%¿ªÊ¼µ¼Èë >>e:\c#\test.txt
osql -S (local) -U sa -P -d colorring -i e:\c#\11.sql >>d:\c#\test.txt
echo %r%µ¼ÈëÍê³É >>e:\c#\test.txt
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bulk insert  colorring..test from 'e:\c#\11.txt'
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backup log dbname with NO_LOG
backup log dbname with TRUNCATE_ONLY
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DELETE from SCOTT.EMP;
DROP from SCOTT.EMP;
TRUNCATE from EMP;
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1. truncateºÍ deleteֻɾ³ýÊý¾Ý²»É¾³ý±íµÄ½á¹¹(¶¨Òå) 
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