I want to sort data by weeks for previous month and I look for code which is usable automatic without manually writing the dates.
Instead of this:
SELECT
wadat_ist AS 'frame'
,CASE
WHEN wadat_ist BETWEEN '2019-09-01' AND '2019-09-01' THEN 'MA1'
WHEN wadat_ist BETWEEN '2019-09-02' AND '2019-09-08' THEN 'MA2'
WHEN wadat_ist BETWEEN '2019-09-09' AND '2019-09-15' THEN 'MA3'
WHEN wadat_ist BETWEEN '2019-09-16' AND '2019-09-22' THEN 'MA4'
WHEN wadat_ist BETWEEN '2019-09-23' AND '2019-09-30' THEN 'MA5'
END AS 'Activity'
I tried this:
SELECT
wadat_ist AS 'frame'
,CASE
WHEN wadat_ist BETWEEN (SELECT (Convert (DATETIME, (SELECT DATEADD(DAY,1,EOMONTH(GETDATE(),-2)))))) AND (SELECT DateAdd (wk, 0, (select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, +0.99999)))) THEN 'MA1'
WHEN wadat_ist BETWEEN (SELECT DateAdd (wk, -4, (SELECT DATEADD(day,-1,DATEadd(MONTH,datediff(month,0,GETDATE()),0))))) AND (SELECT DateAdd (wk, 1, (select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0)))) THEN 'MA2'
WHEN wadat_ist BETWEEN (SELECT DateAdd (wk, -3, (SELECT DATEADD(day,-1,DATEadd(MONTH,datediff(month,0,GETDATE()),0))))) AND (SELECT DateAdd (wk, 2, (select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0)))) THEN 'MA3'
WHEN wadat_ist BETWEEN (SELECT DateAdd (wk, -2, (SELECT DATEADD(day,-1,DATEadd(MONTH,datediff(month,0,GETDATE()),0))))) AND (SELECT DateAdd (wk, 3, (select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0)))) THEN 'MA4'
WHEN wadat_ist BETWEEN (SELECT DateAdd (wk, -1, (SELECT DATEADD(day,-1,DATEadd(MONTH,datediff(month,0,GETDATE()),0))))) AND (SELECT DateAdd (wk, 4, (select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0)))) THEN 'MA5'
END AS 'Activity'
But the results are quite different. Values from first week are in the second week, values from second week are in the third and so on .. .all weeks are shifted somehow... Furthmore first week (MA1) is marked as NULL but his values should go to last week (MA5).
Plus I find this one, but it counts few weeks into one, but as the time goes, it matches to the rigt week, so maybe on the first of november will be fine, but I rather need something that will show data anytime in month.
WHEN wadat_ist BETWEEN (select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0)) AND (select dateadd(wk, datediff(wk, 5, getdate()) - 5, 6)) THEN 'MA1'
WHEN wadat_ist BETWEEN (select dateadd(wk, datediff(wk, 4, getdate()) - 4, 0)) AND (select dateadd(wk, datediff(wk, 4, getdate()) - 4, 6)) THEN 'MA2'
WHEN wadat_ist BETWEEN (select dateadd(wk, datediff(wk, 3, getdate()) - 3, 0)) AND (select dateadd(wk, datediff(wk, 3, getdate()) - 3, 6)) THEN 'MA3'
WHEN wadat_ist BETWEEN (select dateadd(wk, datediff(wk, 2, getdate()) - 2, 0)) AND (select dateadd(wk, datediff(wk, 2, getdate()) - 2, 6)) THEN 'MA4'
WHEN wadat_ist BETWEEN (select dateadd(wk, datediff(wk, 1, getdate()) - 1, 0)) AND (SELECT EOMONTH(getdate(),-1)) THEN 'MA5'
Using T-SQL
As a one of the solutions you can create TimeTable in your database or temp table with your range of time period and then generate column WeekOfMonth:
1. create table at least with these columns(date, year, month, week, quarter : use DATEPART)
2. generate your column:
WeekOfMonth = DENSE_RANK() OVER (PARTITION BY [year], [month] ORDER BY [week])
If you create a good time table it will be useful for future tasks.
Try below (partial) query, comments are inline:
-- set monday as first day of week
set datefirst 1;
-- after checking, that 1 of september is 35th week of year, you can do the following:
select case when datepart(week, wadat_ist) = 35 then 'MA1'
when datepart(week, wadat_ist) = 36 then 'MA2'
when datepart(week, wadat_ist) = 37 then 'MA3'
when datepart(week, wadat_ist) = 38 then 'MA4'
when datepart(week, wadat_ist) = 39 then 'MA5'
end as 'Activity'
or shorter
select case datepart(week, wadat_ist)
when 35 then 'MA1'
when 36 then 'MA2'
when 37 then 'MA3'
when 38 then 'MA4'
when 39 then 'MA5'
end as 'Activity'
Related
I am getting the following error in my WHERE clause on the very last AND statement AND CAST(cp.EndDate...). I just added the CASE statement to know if the month is January and to compare the cp.startdate >= value1 OR value 2
Error:
An expression of non-boolean type specified in a context where a condition is expected, near 'and'.
My WHERE clause:
WHERE
(CAST(cp.startdate AS DATE) >= CAST(DATEADD(year, -1, DATEADD(month, DATEDIFF(month, 0, getdate()), 0)) AS DATE)
OR --FirstDayOfCurrentMonthPriorYear
CASE
WHEN DATEPART(month,getdate()) = 1 --month is January
THEN CAST(DATEADD(month, DATEDIFF(month, 0, getdate())-1, 0) AS DATE) --FirstDayOfLastMonthPriorYear
ELSE CAST(DATEADD(year, -1, DATEADD(month, DATEDIFF(month, 0, getdate()) -1, 0)) AS DATE) --FirstDayOfLastMonthPriorYear
END)
AND CAST(cp.EndDate AS DATE) <= CAST(DATEADD(day, -1, DATEADD(month, DATEDIFF(month, 0, GETDATE()) + 1, 0)) AS DATE) --LastDayOfCurrentMonthCurrentYear
Not sure what's wrong... any help in implementing this would be appreciated.
From a pure syntax point of view, you need to compare something to your CASE output. Something like this would be syntactically correct.
WHERE
(
CAST(cp.startdate AS DATE) >= CAST(DATEADD(year, -1, DATEADD(month, DATEDIFF(month, 0, getdate()), 0)) AS DATE)
OR
CAST(cp.startdate AS DATE) >= CASE
WHEN DATEPART(month,getdate()) = 1 --month is January
THEN CAST(DATEADD(month, DATEDIFF(month, 0, getdate())-1, 0) AS DATE)
ELSE CAST(DATEADD(year, -1, DATEADD(month, DATEDIFF(month, 0, getdate()) -1, 0)) AS DATE)
END
)
AND CAST(cp.EndDate AS DATE) <= CAST(DATEADD(day, -1, DATEADD(month, DATEDIFF(month, 0, GETDATE()) + 1, 0)) AS DATE)
Here is the previous question
I think this is what you are looking for:
WHERE CAST(cp.startdate AS DATE) >= CASE WHEN DATEPART(MONTH,GETDATE()) = 1
THEN DATEADD(DAY,1,EOMONTH(GETDATE(),-1))
ELSE DATEADD(YEAR,-1,DATEADD(DAY,1,EOMONTH(GETDATE(),-1)))
END --FirstDayOfCurrentMonthPriorYear
AND CAST(cp.EndDate AS DATE) <= EOMONTH(GETDATE()) --LastDayOfCurrentMonthCurrentYear
This checks that the cp.startdate is greater than or equal to the first day of the current month in the prior year, and that the cp.enddate is less than or equal to the last day of the current month. Replace GETDATE() with your date of choice.
I'm trying to set the start date to friday on a sql query. Which I have done as you can see below. What I need to do now is show all the GameID's between Friday and Saturday, and it refreshes every week (so that every week it shows other games that have been played in that week).
I'm a complete beginner at SQL so any help is greatly appreciated!
I have tried the sql query below.
DECLARE #StartFriday datetime
DECLARE #EndSaturday datetime
SET DATEFIRST 6 -- Set the start of the week to Friday
SELECT *
FROM
(
SELECT GameDate,
DATEADD(w, 0, DATEADD(w, DATEDIFF(w, 0,GETDATE()), -5)) AS 'StartFriday',
DATEADD(w, 0, DATEADD(w, DATEDIFF(w, 0,GETDATE()), 1)) AS 'EndSaturday'
FROM VW_Resultaat_Score
WHERE GameDate BETWEEN 'StartFriday' AND 'EndSaturday' --Show all GameDates between #StartFriday and #EndSaturday
)
I would love any help I can get!
Cheers
Perhaps this will work better:
DECLARE #StartFriday datetime
DECLARE #EndSaturday datetime
SET DATEFIRST 6
Set #StartFriday = DATEADD(w, 0, DATEADD(w, DATEDIFF(w, 0,GETDATE()), -5))
Set #EndSaturday = DATEADD(w, 0, DATEADD(w, DATEDIFF(w, 0,GETDATE()), 1))
SELECT *
FROM
(
SELECT GameDate
FROM VW_Resultaat_Score
WHERE GameDate BETWEEN #StartFriday AND #EndSaturday
)
If you will only ever need the weekend previous, this code will work:
SELECT *
FROM VW_Resultaat_Score
WHERE GameDate BETWEEN
(SELECT DATEADD(d, 1 - datepart(weekday, dateadd(d, 2, getdate())), getdate()))
AND
(SELECT DATEADD(d, 1 - datepart(weekday, dateadd(d, 1, getdate())), getdate()))
Code looks a little crazy, but it works. If you may need to query other specific weekends, this may be an option:
DECLARE #getdate date
SET #getdate='2017-05-16'
SELECT *
FROM VW_Resultaat_Score
WHERE GameDate BETWEEN
(SELECT DATEADD(d, 1 - datepart(weekday, dateadd(d, 2, #getdate)), #getdate))
AND
(SELECT DATEADD(d, 1 - datepart(weekday, dateadd(d, 1, #getdate)), #getdate))
Taking it a step further, you may need to report on each of these weekends. The following code gives you all the Friday Saturdays of each week for 2017.
WITH Fri as
(SELECT DATEPART(YEAR,DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num)) yyyy, DATEPART(wk,DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num)) weeknumber, Fridays = CAST(DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num) as Date)
FROM (SELECT TOP 366 num = ROW_NUMBER() OVER(ORDER BY a.NAME)-1 FROM dbo.syscolumns a, dbo.syscolumns b) n
WHERE DATENAME(weekday, DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num)) = 'Friday')
,
Sat as
(SELECT weeknumber=DATEPART(wk,DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num)), Saturdays = CAST(DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num) as Date)
FROM (SELECT TOP 366 num = ROW_NUMBER() OVER(ORDER BY a.NAME)-1 FROM dbo.syscolumns a, dbo.syscolumns b) n
WHERE DATENAME(weekday, DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), n.num)) = 'Saturday')
Select Fri.weeknumber, fri.yyyy, Fridays, Saturdays
FROM Fri
JOIN Sat on Fri.weeknumber=Sat.weeknumber
How could I get the first business day of the current month?
Without create a function, only select.
something like that:
SELECT CONVERT(VARCHAR(25),DATEADD(dd,-(DAY(GETDATE())-1), GETDATE()), 101)
somebody knows please?
Thanks.
A Simple case statement could do it
SELECT CASE
WHEN DATENAME(WEEKDAY, dateadd(mm, DATEDIFF(MM, 0, getdate()), 0)) = 'Saturday'
THEN dateadd(mm, DATEDIFF(MM, 0, getdate()), 0) + 2
WHEN DATENAME(WEEKDAY, dateadd(mm, DATEDIFF(MM, 0, getdate()), 0)) = 'Sunday'
THEN dateadd(mm, DATEDIFF(MM, 0, getdate()), 0) + 1
ELSE dateadd(mm, DATEDIFF(MM, 0, getdate()), 0)
END
This will literally give you what you're asking for -- the first business day in a month if we define a business day as "any day that's not a Saturday or a Sunday". But this is is a very narrow definition of "business day" that is not appropriate when taking into account holidays and cultural differences, so it generalizes poorly. The typical solution for this problem is to create a table that actually holds the working days (which is generated somewhere just before he year, or calculated in advance if that's feasible), and simply look it up in that.
SELECT DATEADD(DAY,
CASE
(DATEPART(WEEKDAY, DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()), 0)) + ##DATEFIRST - 1) % 7
WHEN 6 THEN 2
WHEN 7 THEN 1
ELSE 0
END,
DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()), 0)
)
This solution uses ##DATEFIRST to avoid any language issues -- using DATEPART(WEEKDAY, ...) on its own or DATENAME() only works if we assume a specific region.
If you have more flexibility in your SELECT statement, you might be able to use something like this:
;With Daterange As
(
Select DateAdd(Month, DateDiff(Month, 0, GetDate()), 0) As Date Union All
Select DateAdd(Day, 1, Date) As Date
From DateRange
Where Date < DateAdd(Day, 6, DateAdd(Month, DateDiff(Month, 0, GetDate()), 0))
)
Select Convert(Date, Min(Date)) FirstBusinessDay
From Daterange
Where DatePart(WeekDay, Date) Not In (7, 1)
Try this.
SELECT CASE
WHEN Datename(dw, Dateadd(dd, -Datepart(dd, Getdate()) + 1, Getdate())) = 'Saturday' THEN Dateadd(dd, -Datepart(dd, Getdate()) + 3, Getdate())
WHEN Datename(dw, Dateadd(dd, -Datepart(dd, Getdate()) + 1, Getdate())) = 'Sunday' THEN Dateadd(dd, -Datepart(dd, Getdate()) + 2, Getdate())
ELSE Dateadd(dd, -Datepart(dd, Getdate()) + 1, Getdate())
END
Explanation :
Find the first day of the month.
Dateadd(dd, -Datepart(dd, Getdate()) + 1, Getdate())
Then check the day of the previous date by using Datename function.
Datename(dw, Dateadd(dd, -Datepart(dd, Getdate()) + 1, Getdate()))
If the Datename is Saturday the add 2 days to the first day of the month . if it is sunday then add 1 day to the first day of the month else get the first day of the month
With SQL Server, I have a column with a launch date (dateTime). I want to report on everything that is being launched between all of last month (from viewing date) thru all of this month and next month.
So basically a full 3 month period.
What is the best way to write that?
Are you looking for something like this?
DECLARE
#StartDate DATETIME,
#EndDate DATETIME
SELECT
#StartDate = DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) - 1, 0),
#EndDate = DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) + 2, 0)
-- DATEADD(MM, DATEDIFF(MM, 0, GETDATE()), 0), -- beginning of this month
-- DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) - 1, 0), -- beginning of last month
-- DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) + 1, 0) -- beginning of next month
-- DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) + 2, 0) -- beginning of two months from now
SELECT
*
FROM
[Table]
WHERE
[LaunchDate] >= #StartDate
AND [LaunchDate] < #EndDate
This will give you all the results starting from the beginning of the previous month and before the beginning of two months from now (a full 3 month range)
Maybe something like SELECT /*what_you_want*/ from launches WHERE lauchDate BETWEEN DATEADD(MONTH, DATEDIFF(MONTH, '19000101', GETDATE()) - 1, '19000101') AND DATEADD(MONTH, DATEDIFF(MONTH, '19000101', GETDATE()) + 2, '19000101')
SELECT Foo
FROM Bar
WHERE LaunchDate >= DATEADD(mm, -1, GETDATE())
AND LaunchDate <= DATEADD(mm, 1, GETDATE())
I am trying to list last a website's statistics.
I listed Last 30 days with;
CONVERT(VARCHAR(10), S.DATEENTERED, 101)
BETWEEN
CONVERT(VARCHAR(10), GETDATE()-30, 101)
AND
CONVERT(VARCHAR(10), GETDATE(), 101)
and this month with;
RIGHT(CONVERT(VARCHAR(10), S.DATEENTERED, 103), 7) =
RIGHT(CONVERT(VARCHAR(10), GETDATE(), 103), 7)
but I have no idea what query to use for last month. I tried with;
RIGHT(CONVERT(VARCHAR(10), S.DATEENTERED, 103), 7) =
RIGHT(CONVERT(VARCHAR(10), GETDATE()-1, 103), 7)
Did not work.
Dates are always a joy to work with in any programming language, SQL not excluded.
To answer your question to find all records that occurred last month
select S.DATEENTERED
,*
from sometable S
where S.DATEENTERED
between dateadd(mm, datediff(mm, 0, dateadd(MM, -1, getdate())), 0)
and dateadd(ms, -3, dateadd(mm, datediff(mm, 0, dateadd(MM, -1, getdate())) + 1, 0))
order by 1
To expand the best means for getting records within a certain time-frame is by utilizing the datediff function, dateadd function, and the between condition in the where clause.
select 'howdy'
,getdate()
where getdate()
between dateadd(mm, 0, 0)
and dateadd(ms, -3, dateadd(mm, datediff(mm, 0, dateadd(mm,-1,getutcdate())) + 1, 0))
The above code will result in no records returned because it is checking to see if today's date is between 1900-01-01 00:00:00.000 and the last possible recorded date of last month (the last day and 23:59:59.997 - SQL Server DATETIME columns have at most a 3 millisecond resolution).
The following code will return a record as the date we are searching for is one month ago.
select 'howdy'
,dateadd(mm, -1, getdate())
where dateadd(mm, -1, getdate())
between dateadd(mm, 0, 0)
and dateadd(ms, -3, dateadd(mm, datediff(mm, 0, dateadd(mm,-1,getutcdate())) + 1, 0))
A break down of the where clause:
WHERE getdate() -- date to check
between dateadd(mm, 0, 0) -- begin date
and dateadd(ms, -3, dateadd(mm, datediff(mm, 0, dateadd(mm,-1,getutcdate())) + 1, 0)) -- end date
Finally, a variety of dates can be ascertained in this manner here is a pretty complete list:
select dateadd(mm, 0, 0) as BeginningOfTime
,dateadd(dd, datediff(dd, 0, getdate()), 0) as Today
,dateadd(wk, datediff(wk, 0, getdate()), 0) as ThisWeekStart
,dateadd(mm, datediff(mm, 0, getdate()), 0) as ThisMonthStart
,dateadd(qq, datediff(qq, 0, getdate()), 0) as ThisQuarterStart
,dateadd(yy, datediff(yy, 0, getdate()), 0) as ThisYearStart
,dateadd(dd, datediff(dd, 0, getdate()) + 1, 0) as Tomorrow
,dateadd(wk, datediff(wk, 0, getdate()) + 1, 0) as NextWeekStart
,dateadd(mm, datediff(mm, 0, getdate()) + 1, 0) as NextMonthStart
,dateadd(qq, datediff(qq, 0, getdate()) + 1, 0) as NextQuarterStart
,dateadd(yy, datediff(yy, 0, getdate()) + 1, 0) as NextYearStart
,dateadd(ms, -3, dateadd(dd, datediff(dd, 0, getdate()) + 1, 0)) as TodayEnd
,dateadd(ms, -3, dateadd(wk, datediff(wk, 0, getdate()) + 1, 0)) as ThisWeekEnd
,dateadd(ms, -3, dateadd(mm, datediff(mm, 0, getdate()) + 1, 0)) as ThisMonthEnd
,dateadd(ms, -3, dateadd(qq, datediff(qq, 0, getdate()) + 1, 0)) as ThisQuarterEnd
,dateadd(ms, -3, dateadd(yy, datediff(yy, 0, getdate()) + 1, 0)) as ThisYearEnd
Using the above list a range of any type can be determined.
The following will find you the start of the last month:
-- Start of last month
SELECT CAST('01 '+ RIGHT(CONVERT(CHAR(11),DATEADD(MONTH,-1,GETDATE()),113),8) AS datetime)
You would then find the start of this month, using the following, minus one.
-- Start of the month
SELECT CAST('01 '+ RIGHT(CONVERT(CHAR(11),GETDATE(),113),8) AS datetime)
When I have to work with dates in SQL Server I often reference Robyn Page's SQL Server DATE/TIME Workbench. The workbench (tutorial) is well laid out and contains just about everything I have ever needed when working with dates on SQL Server.
How about this?
select DATEADD(month, -1, GETDATE())
I would suggest using the first day of last month and the first day of the current month for the operation and rather than using BETWEEN use >= and <. That's my personal opinion, but I believe you will find there are performance and maintainability benefits to this approach.
Here's the sql. You will notice I've included the last day of the last month value just in case you end up going with another approach.
Keep in mind, these dates are based off of 12:00AM that day. In other words, getting values between 6/1/2009 and 6/30/2009 won't get you what you want as all of 6/30/2009 is excluded. If you use the first day of July (7/1/2009) you are covered.
Again, I recommend avoiding BETWEEN all together as shown below. Best of luck.
Declare #LastMonthFirstDay datetime
Declare #LastMonthLastDay datetime
Declare #ThisMonthFirstDay datetime
Set #LastMonthFirstDay = DATEADD(MONTH, DATEDIFF(MONTH, 0, CURRENT_TIMESTAMP) - 1, 0);
Set #ThisMonthFirstDay = DATEADD(MONTH, DATEDIFF(MONTH, 0, CURRENT_TIMESTAMP), 0);
Set #LastMonthLastDay = DATEADD(DAY, -1, DATEADD(MONTH, DATEDIFF(MONTH, 0, CURRENT_TIMESTAMP), 0));
Select * From Table
Where DateEntered >= #LastMonthFirstDay
And DateEntered < #ThisMonthFirstDay;
Try using the DATEADD function. You can add a -1 with the MONTH (mm) datepart and it should work. Here is a link
where year(S.DATEENTERED) = year(dateadd(mm, -1, getdate())) and month(S.DATEENTERED) = month(dateadd(mm, -1, getdate()))
Might not be good performance-wise but you've got the idea.
GET FIRST DAY OF LAST MONTH
SELECT DATEADD(MM, DATEDIFF(MM, '01/01/2000', DATEADD(MM, -1,GETDATE())), '01/01/2000')
GET LAST DAY OF LAST MONTH
SELECT DATEADD(SS,-1,DATEADD(MM, DATEDIFF(MM,'01/01/2000',GETDATE()),'01/01/2000'))
Then search based on this range.
Try:
declare #lastm int
set #lastm = datepart(mm,getdate()) - 1
...
where datepart(mm,s.dateentered) = #lastm