1 —上个月月初第一天
select CONVERT(varchar(12) , DATEADD(mm,DATEDIFF(mm,0,dateadd(mm,-1,getdate())),0), 112 )
—上个月月末最后一天
select CONVERT(varchar(12),dateadd(ms,-3,DATEADD(mm,DATEDIFF(m,0,getdate()),0)), 112 )
1. 显示本月第一天
SELECT DATEADD(mm,DATEDIFF(mm,0,getdate()),0)
select convert(datetime,convert(varchar(8),getdate(),120)+’01’,120)
2. 显示本月最后一天
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. 上个月的最后一天
SELECT dateadd(ms,-3,DATEADD(mm,DATEDIFF(mm,0,getdate()),0))
4. 本月的第一个星期一
select DATEADD(wk,DATEDIFF(wk,0, dateadd(dd,6-datepart(day,getdate()),getdate())),0)
5. 本年的第一天
SELECT DATEADD(yy,DATEDIFF(yy,0,getdate()),0)
6. 本年的最后一天
SELECT dateadd(ms,-3,DATEADD(yy,DATEDIFF(yy,0,getdate())+1,0))
7. 去年的最后一天
SELECT dateadd(ms,-3,DATEADD(yy,DATEDIFF(yy,0,getdate()),0))
8. 本季度的第一天
SELECT DATEADD(qq,DATEDIFF(qq,0,getdate()),0)
9. 本周的星期一
SELECT DATEADD(wk,DATEDIFF(wk,0,getdate()),0)
10. 查询本月的记录
select * from tableName where DATEPART(mm, theDate)=DATEPART(mm, GETDATE()) and DATEPART(yy, theDate) = DATEPART(yy, GETDATE())
11. 查询本周的记录
select * from tableName where DATEPART(wk, theDate) = DATEPART(wk, GETDATE()) and DATEPART(yy, theDate) = DATEPART(yy, GETDATE())
12 查询本季的记录 注：其中:GETDATE() 是获得系统时间的函数。
select * from tableName where DATEPART(qq, theDate) = DATEPART(qq, GETDATE()) and DATEPART(yy, theDate) = DATEPART(yy, GETDATE())
13. 获取当月总天数:
select DATEDIFF(dd,getdate(),DATEADD(mm, 1, getdate()))
select datediff(day,dateadd(mm, datediff(mm,”,getdate()), ”),dateadd(mm, datediff(mm,”,getdate()), ‘1900-02-01′))
14. 获取当前为星期几
SELECT DATENAME(weekday, getdate())
select CONVERT(varchar(12) , getdate(), 101 ) –12/28/2007
select CONVERT(varchar(12) , getdate(), 102 ) –2007.12.28
select CONVERT(varchar(12) , getdate(), 103 ) –28/12/2007
select CONVERT(varchar(12) , getdate(), 104 ) –28.12.2007
select CONVERT(varchar(12) , getdate(), 105 ) –28-12-2007
select CONVERT(varchar(12) , getdate(), 106 ) –28 12 2007
select CONVERT(varchar(12) , getdate(), 107 ) –12 28, 2007
select CONVERT(varchar(12) , getdate(), 108 ) –10:06:33
select CONVERT(varchar(12) , getdate(), 109 ) –12 28 2007 1
select CONVERT(varchar(12) , getdate(), 110 ) –12-28-2007
select CONVERT(varchar(12) , getdate(), 111 ) –2007/12/28
select CONVERT(varchar(12) , getdate(), 112 ) –20071228
select CONVERT(varchar(12) , getdate(), 113 ) –28 12 2007 1
select CONVERT(varchar(12) , getdate(), 114 ) –10:07:36:623
select CONVERT(varchar, getdate(), 120 ) –2007-12-28 10:08:56
select CONVERT(varchar(10), getdate(), 120 ) –2007-12-28
select replace(replace(replace(CONVERT(varchar, getdate(), 120 ),’-‘,”),’ ‘,”),’:’,”) –20071228101012
