SQL ¹¹Ôìʱ¼ä±í·½·¨123

£¨1£©SQL·½·¨£¨1£©
select convert(varchar(5),dateadd(hour,number,cast('00:00' as datetime)),108)+'~'+
convert(varchar(5),dateadd(hour,number+1,cast('00:00' as datetime)),108) as [date]
from master..spt_values
where type = 'P' and
number <= 23
£¨2£©SQL·½·¨£¨2£©
µÃ³öÒ»ÌìµÄʱ¼ä¶Î¼Ç¼¡££¨Èç  1£º00-2£º00£© (¿ÉÒÔÖ»ÓÃÒ»¸ö±í)
select ʱ¼ä¶Î=right(100+number,2)+':00-'+right(101+number,2)+':00'
from master..spt_values
where type='p'
    and number between 0 and 23 
   
============================================================================
SQLʱ¼ä¶Î²éѯ
ACCESSµÄ»°
select * from table where date1<#2008-1-20# and date2>#2007-8-30#
MYSQLµÄ»°
select * from table where date1<'2008-1-20' and date2>'2007-3-30'
Ò²¿ÉÒÔ
select * from table where date1 between '2008-1-20' and '2007-3-30'
ÆäÖÐdate1,date2¶¼ÊÇÈÕÆÚÀàÐ͵Ä×Ö¶Î
sQLʱ¼äÐͲéѯÓï¾ä
2007Äê12ÔÂ04ÈÕ ÐÇÆÚ¶þ 13:54
select * from jy_jjgl a ,jy_jygl b where convert(varchar(10),a.shtime,120)='2007-11-27'
1.ÏÔʾ±¾ÔµÚÒ»Ìì
SELECT DATEADD(mm,DATEDIFF(mm,0,getdate()),0)
select convert(datetime,convert(varchar(8),getdate(),
120)+'01',120)
2.ÏÔʾ±¾ÔÂ×îºóÒ»Ìì
select dateadd(day,-1,convert(datetime,convert
(varchar(8),dateadd(month,1,getdate()),120)+'01',120))
SELECT dateadd(ms,-3,DATEADD(mm,DATEDIFF(m,0,getdate())+1,0))
3.ÉϸöÔµÄ×îºóÒ»Ìì
SELECT dateadd(ms,-3,DATEADD(mm,DATEDIFF(mm,0,getdate()),0))
4.±¾ÔµĵÚÒ»¸öÐÇÆÚÒ»i
select DATEADD(wk,DATEDIFF(wk,0, dateadd(dd,6-datepart(
day,getdate()),getdate())),0)
5.±¾ÄêµÄµÚÒ»Ìì
SELECT DATEADD(yy,DATEDIFF(yy,0,getdate()),0)
6.±¾ÄêµÄ×îºóÒ»Ìì
SELECT dateadd(ms,-3,DATEADD(yy,DATEDIFF(yy,0,getdate())+1,0))
7.È¥ÄêµÄ×îºóÒ»Ìì
SELECT dateadd(ms,-3,DATEADD(yy,DATEDIFF(yy,0,getdate()),0))
8.±¾¼¾¶ÈµÄµÚÒ»Ìì
SELECT DATEADD(qq,DATEDIFF(qq,0,getdate()),0)
9.±¾ÖܵÄÐÇÆÚÒ»
SELECT DATEADD(wk,DATEDIFF(wk,0,getdate()),0)
10.²éѯ±¾ÔµļǼ
select * from tableName where DATEPART(mm, theDate)
=DATEPART(mm, GETDAT