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---The first day of the month
Select CONVERT (varchar (), DATEADD (Mm,datediff (Mm,0,dateadd (Mm,-1,getdate ()), 0), 112)
---The last day of the month
Select CONVERT (varchar (), DATEADD (Ms,-3,dateadd (Mm,datediff (M,0,getdate ()), 0), 112)
--1. Show 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. Show 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 the 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 the quarter
SELECT DATEADD (Qq,datediff (Qq,0,getdate ()), 0)
--9. Monday of the Week
SELECT DATEADD (Wk,datediff (Wk,0,getdate ()), 0)
--10. Check the records for this month
SELECT * FROM tablename where DATEPART (mm, thedate) =datepart (mm, GETDATE ()) and DATEPART (yy, thedate) = DATEPART (yy, GETDA TE ())
--11. Check this week's records
SELECT * FROM tablename where DATEPART (wk, thedate) = DATEPART (wk, GETDATE ()) and DATEPART (yy, thedate) = DATEPART (yy, get DATE ())
--12 query for this season note: GETDATE () is a function to obtain system time.
SELECT * FROM TableName where DATEPART (QQ, thedate) = DATEPART (QQ, GETDATE ()) and DATEPART (yy, thedate) = DATEPART (yy, get DATE ())
--13. Get total days of the month:
Select DATEDIFF (Dd,getdate (), DATEADD (mm, 1, GETDATE ()))
Select DateDiff (mm, DateDiff (mm, ', GETDATE (), '), DateAdd (mm, DateDiff (mm, ', GETDATE ()), ' 1900-02-01 ') )
--14. Gets the current day of the week
SELECT Datename (Weekday, GETDATE ())
Select CONVERT (varchar (), GETDATE (), 101)--12/28/2007
Select CONVERT (varchar (), GETDATE (), 102)--2007.12.28
Select CONVERT (varchar (), GETDATE (), 103)--28/12/2007
Select CONVERT (varchar (), GETDATE (), 104)--28.12.2007
Select CONVERT (varchar (), GETDATE (), 105)--28-12-2007
Select CONVERT (varchar (), GETDATE (), 106)--28 12 2007
Select CONVERT (varchar (), GETDATE (), 107)--12 28, 2007
Select CONVERT (varchar (), GETDATE (), 108)--10:06:33
Select CONVERT (varchar (), GETDATE (), 109)--12 28 2007 1
Select CONVERT (varchar (), GETDATE (), 110)--12-28-2007
Select CONVERT (varchar (), GETDATE (), 111)--2007/12/28
Select CONVERT (varchar (), GETDATE (), 112)--20071228
Select CONVERT (varchar (), GETDATE (), 113)--28 12 2007 1
Select CONVERT (varchar (), GETDATE (), 114)--10:07:36:623
Select CONVERT (varchar, GETDATE (), 120)--2007-12-28 10:08:56
Select CONVERT (varchar), GETDATE (), 120)--2007-12-28
Select replace (replace (varchar, GETDATE (), 120), '-', '), ', ', ': ', ', ')--20071228101012
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