--- First day of last month
Select convert (varchar (12), dateadd (mm, datediff (mm, 0, dateadd (mm,-1, getdate (), 0), 112)
--- Last day of last month
Select convert (varchar (12), dateadd (MS,-3, dateadd (mm, datediff (M, 0, getdate (), 0), 112)
1. display the first day of the month
SELECT DATEADD(mm,DATEDIFF(mm,0,getdate()),0) select convert(datetime,convert(varchar(8),getdate(), 120)+'01',120) |
2. display the last day of the month
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. Last day of last month
SELECT dateadd(ms,-3,DATEADD(mm,DATEDIFF(mm,0,getdate()),0)) |
4. the first Monday of this month
select DATEADD(wk,DATEDIFF(wk,0, dateadd(dd,6-datepart( day,getdate()),getdate())),0) |
5. The first day of this year
SELECT DATEADD(yy,DATEDIFF(yy,0,getdate()),0) |
6. The last day of the year
SELECT dateadd(ms,-3,DATEADD(yy,DATEDIFF(yy,0,getdate())+1,0)) |
7. Last day of last year
SELECT dateadd(ms,-3,DATEADD(yy,DATEDIFF(yy,0,getdate()),0)) |
8. The first day of this quarter
SELECT DATEADD(qq,DATEDIFF(qq,0,getdate()),0) |
9. Monday of the week
SELECT DATEADD(wk,DATEDIFF(wk,0,getdate()),0) |
10. query records of this month
select * from tableName where DATEPART(mm, theDate) =DATEPART(mm, GETDATE()) and DATEPART(yy, theDate) = DATEPART(yy, GETDATE()) |
11. query the records of this week
select * from tableName where DATEPART(wk, theDate) = DATEPART (wk, GETDATE()) and DATEPART(yy, theDate) = DATEPART(yy, GETDATE()) |
12. query this season's recordsNote: getdate () is a function used to obtain the system time.
select * from tableName where DATEPART(qq, theDate) = DATEPART (qq, GETDATE()) and DATEPART(yy, theDate) = DATEPART(yy, GETDATE()) |
13. Get the total number of days of the month:
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. Obtain the current day of the week
DATENAME(weekday, getdate()) |
Bytes -------------------------------------------------------------------------------------------
1. Select convert (varchar (12), getdate (), 101)
12/28/2007
2. Select convert (varchar (12), getdate (), 102)
2007.12.28
3. Select convert (varchar (12), getdate (), 103)
28/12/2007
4. Select convert (varchar (12), getdate (), 104)
28.12.2007
5) Select convert (varchar (12), getdate (), 105)
28-12-2007
6. Select convert (varchar (12), getdate (), 106)
28 12 2007
7. Select convert (varchar (12), getdate (), 107)
12 28,200 7
8. Select convert (varchar (12), getdate (), and 108)
10:06:33
9. Select convert (varchar (12), getdate (), 109)
12 28 2007 1
10. Select convert (varchar (12), getdate (), 110)
12-28-2007
11. Select convert (varchar (12), getdate (), 111)
2007/12/28
12. Select convert (varchar (12), getdate (), 112)
20071228
13. Select convert (varchar (12), getdate (), 113)
28 12 2007 1
14. Select convert (varchar (12), getdate (), 114)
10: 07: 36: 623
15. Select convert (varchar, getdate (), 120)
2007-12-28 10:08:56
Select convert (varchar (10), getdate (), 120)
2007-12-28
16. select Replace (replace (convert (varchar, getdate (), 120 ),'-',''),'',''),':','')
20071228101012