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±íÃû: hisdata
×Ö¶Î ±àºÅ Öµ ״̬ ʱ¼ä  
  Id value state dattime  
  101 32.3 0 2010-4-7 12£º34£º56
  102 19.2 1 2010-4-7 12£º34£º46
  103 23.2 0 2010-4-7 14£º21£º02
  101 32.3 0 2010-4-7 15£º13£º31
  102 19.2 1 2010-4-7 15£º28£º24
  103 23.2 0 2010-4-7 15£º27£º46
  --- ---- -- ------
  --- ----- --- ------
  101 32.3 0 2010-4-10 7£º56£º24
  102 19.2 1 2010-4-10 7£º31£º32
  103 23.2 0 2010-4-10 8£º19£º15

  ±ÈÈçÒª²éѯ2009Äê4ÔÂ7ÈÕºÍ4ÔÂ10ÈÕÖ®¼ä ±àºÅΪ101µÄÿÌìÊý¾ÝµÄ×î´óÖµ£¬ÈçºÎд²éѯÓï¾ä лл




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SQL code:
select max(value) as maxValue,convert(varchar(10),[dattime],120) as [date]
from hisdata
where convert(varchar(10),[dattime],120) between '2009-04-07' and '2009-04-10'
and Id=101
group by convert(varchar(10),[dattime],120)


select top 1 datetime from testtable4 where Id='101' and convert(datetime,datetime1) between convert(datetime,'2010-04-07 12:00:00') and conve


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  ת³ö µ¥Î» תÈ뵥λ ±ÊÊý ½ð¶î
date(Ö÷) outid(Ö÷) inid(Ö÷) num amt
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ÇóÒ»¸öSQLÓï¾ä - MS-SQL Server / »ù´¡Àà

×Ö¶Î1,×Ö¶Î2.....×Ö¶ÎN,Status,ParentID
1,Name1....test1,1,99
1,Name1....test1,3,99
1,Name2....test2,1,101
1,Name2....test2,3,101
1,Name3....test3,2,101
1,Name1....test1,4,101
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