Table Name: tablename time field name: thedate ============================== datepart Function
Date |
Abbreviations |
Year |
YY, yyyy |
Quarter |
QQ, Q |
Month |
Mm, m |
Dayofyear |
Dy, y |
Day |
DD, d |
Week |
Wk, WW |
Weekday |
DW |
Hour |
HH |
Minute |
Mi, n |
Second |
SS, S |
Millisecond |
MS |
Query records of this month. Select * From tablename where datepart (mm, thedate) = datepart (mm, getdate () and datepart (YY, thedate) = datepart (YY, getdate ())
Query records of this week. Select * From tablename where datepart (wk, thedate) = datepart (wk, getdate () and datepart (YY, thedate) = datepart (YY, getdate ())
Query this season's record select * From tablename where datepart (QQ, thedate) = datepart (QQ, getdate () and datepart (YY, thedate) = datepart (YY, getdate ())
Specifically, getdate () is a function used to obtain the system time.
Functions ------------------- datediff Function
Date |
Abbreviations |
Year |
YY, yyyy |
Quarter |
QQ, Q |
Month |
Mm, m |
Dayofyear |
Dy, y |
Day |
DD, d |
Week |
Wk, WW |
Hour |
HH |
Minute |
Mi, n |
Second |
SS, S |
Millisecond |
MS |
Query the current day's record select count (*) from tablename where (datediff (DD, thedate, getdate () = 0) query this month's record select count (*) from tablename where (datediff (mm, thedate, getdate () = 0) query this year's record select count (*) from tablename where (datediff (YY, thedate, getdate ()) = 0)
Source: http://www.bcbbs.net/news/Content.aspx? Id = 34330 Article Source: http://www.bcbbs.net/news/Content.aspx? Id = 34330
Table Name: tablename time field name: thedate
Query records of this month. Select * From tablename where datepart (mm, thedate) = datepart (mm, getdate () and datepart (YY, thedate) = datepart (YY, getdate ())
Query records of this week. Select * From tablename where datepart (wk, thedate) = datepart (wk, getdate () and datepart (YY, thedate) = datepart (YY, getdate ())
Query this season's record select * From tablename where datepart (QQ, thedate) = datepart (QQ, getdate () and datepart (YY, thedate) = datepart (YY, getdate ())
Specifically, getdate () is a function used to obtain the system time.