Transact SQL :: Start Week Of The Month For A Given Week
Jul 23, 2015
I need a Select sentence that return me the first week of the month for a given week.
For example If I have week number 12 (Begins 2015/03/16 and Ends 2015/03/22) I need that returns 9, I mean Week number 9 wich is the first week of march (having in mind @@DATEFIRST).
I only need give a week number of the year and then returns the week number of the first week of that month.
We are trying to compare our current calendar week (based on Monday being the first day of the week) with the previous calendar week.
I'm trying to produce a line chart with 2 axis:
- x axis; the day of the week (Mon, Tues, Wed etc - it is fine for this to be a # rather than text e.g. 1 = Mon, 2 = Tues etc) - y axis; the cumulative number of orders
The chart needs two series:
Previous Week. The running count of orders placed that week. Current Week. The running count of orders placed this week.
Obviously in such a chart the 'Current Week' series is going not going to have values along the whole axis until the end of the week. This is expected and the aim of the chart is to see the current week compares against the previous week for the same day.
I have two tables:
Orders TableCalendar Table
The calendar table's main date column is [calDate] and there are columns for the usual [calWeekNum], [calMonth] etc.
My measure for counting orders is simply; # Orders: = countrows[orders].
How do I take this measure and then work out my two series. I have tried numerous things such as adapting TOTALMTD(), following articles such as these:
- [URL] ... - [URL] ...
But I have had no luck. The standard cumulative formulas do work e.g. if I wanted a MTD or YTD table I would be ok, it's just adjusting to a WTD that is causing me big issues.
I'd like to add a yesterday dimension member to a new dimension, like a "Time Utility" dimension, that references the second last day of non empty data in a cube.
At the moment, I'm doing this:
Code Snippet
create member [MIA DW].[DATE TIME].[Date].[Yesterday] as [DATE TIME].[Date].&[2007-01-01T00:00:00]
select [Measures].members on 0, non empty [DATE TIME].[Date].members on 1 from [MIA DW] But the [yesterday] member does not seem to belong to [DATE TIME].[Date].members?
So I guess there's two questions:
1) Can I have a new empty dimension which contains all these special members like "Yesterday" or "This Week" and "Last Week" (these last two obviously refer to a set of Dates)
2)How come the Yesterday member is not returned by the .members function?
I am trying to calculate the number of the week within a month of a given date. in other words, given a date I need to find out whether it's the 1st week or 2nd or 3rd or 4th or 5th week of that given month.
for instance let's call my function "weekOfMonth()":
weekOfMonth(4/19/2004) should return 4 (it's the fourth week of april) weekOfMonth(4/7/2004) should return 2 (it's the second week of april) etc ..
Running a SQL 7 system on a Windows 2000 server using Access 2000 on clientmachines as a front end. System administrator currently reboots the serveronce a month. Yesterday we had some weird thing with the database whereusers were getting ODBC errors when trying to access it. Rebooted theserver, everything was fine. Suggested to the sa that he reboot the serveronce a week. He said he already does it once a month, and that's sufficient.My POV is that: a) doing it once a week might prevent situations such as theone yesterday; b) even without situations like the one yesterday,performance may be degrading over the course of the month, without our beingaware of it, and rebooting once a week might help performance.Any thoughts on this?Thanks!Neil
while(select MAX(wrh) from @tem1 where wrh = 0) < 1 begin update @tem1 set wrh = (select toaccount from @tem1 where reportdate = (select min(reportdate) from @tem1 where wrh = 0))+(select max(wrh) from @tem1) where wrh = (select max(wrh) from @tem1 where wrh = 0 ) and reportdate = (select min(reportdate) from @tem1 where wrh = 0) end
this is the result while executing loop statement .
employeeidreportdatereportatleftatdehdrhwehwrh 129029 Jan 201409:3019:15008:0009:20024:00065:54 129028 Jan 201409:0018:45008:0009:18016:00056:34 129027 Jan 201409:0018:45008:0009:18008:0009:18 129025 Jan 201408:0010:00005:0002:00045:00047:16 -- week end 129024 Jan 201409:1718:45008:0009:01040:00045:16 129023 Jan 201409:1918:46008:0009:06032:00036:15 129022 Jan 201409:1718:47008:0009:05024:00027:09 129021 Jan 201409:1618:35008:0008:46016:00018:04 129020 Jan 201409:1818:55008:0009:03008:0009:03
How to update only that week hrs , don't continue next week...
In my reports I am extracting the data of number of people joined in all the weeks of the year. And in one of reports I have to extract the data of the number of people joined until the last week from the first week. I am trying out all the logics but nothing is working for me as such. Can any one help me with this issue??????
Hi, Support, I have a table order and the field are orderid,customerid,orderdate. What i need to do is that I want customer order list as how many order per week in a month. Can anyone help me please. Regards
I need SQL to determine what the date range for the previous week was, ie Start date 11/11/01 for Last Sunday through 11/17/01 the following Saturday. The results will populate a drop down box for user queries. Thanx.
I am writing report to display some IIS site activity, part of the requirement is to produce a trend for user activity for each week of the year.
I have written a stored procedure that uses datepart to split year, month and year week number into separate columns. However the problem I am having is that when a week is split over 2 months I end up with the two entries for the same week but across two months which also splits the count of activity into two rows. So when I produce a line chart in SSRS I end up with a dip due to the week total being split.
An example would be week number 14 of this year is split over two months, I think I need to add same week number activity counts together but not sure how to handle this in the stored procedure.
I am trying to group counts by week,month,quarter, year for a particular activity type and I'm having issues.Here's my code so far:
SELECT distinct EmailAddressID, emailaddress, SUM(CASE WHEN [ActivityDate] >= DATEADD(WEEK, DATEDIFF(WEEK, 0, @DT), 0) THEN SUM(CASE WHEN EmailActivityType = 'OPEN' THEN 1 ELSE 0 END) END AS WeekTotalOpens FROM EmailActivity WHERE DATEPART(YEAR, [ActivityDate]) = DATEPART(YEAR, @DT) GROUP BY EmailAddressID,emailaddress Desired Output: EmailAddressId EmailAddress WeekTotalOpens MonthTotalOpens etc. then WeekTotalClicks and so on....
SQL doesn't seem to like the sub-aggregate. What is the best way to approach?
I wrote the following function to find the start of week date for a given date and a given start day of week.
For example: If the day passed is Saturday, 2005-03-19, and Sunday is the start of the week, it returns: 2005-03-13 00:00:00.000
If the day passed is Monday, 2005-03-14, and Sunday is the start of the week, it returns: 2005-03-13 00:00:00.000
If the day passed is Monday, 2005-03-14, and Monday is the start of the week, it returns: 2005-03-14 00:00:00.000
Does anyone have a simpler algorithim for start of week that they care to post?
Edit (2006/4/15): Posted a companion function F_END_OF_WEEK, on this topic: http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=64760
There are other Start of Time Period Functions posted here: http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=64755
There are other End Date of Time Period Functions here: http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=64759
create function dbo.F_START_OF_WEEK ( @DATEdatetime, -- Sun = 1, Mon = 2, Tue = 3, Wed = 4 -- Thu = 5, Fri = 6, Sat = 7 -- Default to Sunday @WEEK_START_DAYint= 1 ) /* Find the fisrt date on or before @DATE that matches day of week of @WEEK_START_DAY. */ returnsdatetime as begin declare @START_OF_WEEK_DATEdatetime declare @FIRST_BOWdatetime
-- Check for valid day of week if @WEEK_START_DAY between 1 and 7 begin -- Find first day on or after 1753/1/1 (-53690) -- matching day of week of @WEEK_START_DAY -- 1753/1/1 is earliest possible SQL Server date. select @FIRST_BOW = convert(datetime,-53690+((@WEEK_START_DAY+5)%7)) -- Verify beginning of week not before 1753/1/1 if @DATE >= @FIRST_BOW begin select @START_OF_WEEK_DATE = dateadd(dd,(datediff(dd,@FIRST_BOW,@DATE)/7)*7,@FIRST_BOW) end end
return @START_OF_WEEK_DATE
end go
-- Sample function calls
select dbo.F_START_OF_WEEK(getdate(),default) -- Returns Date for Sunday
select dbo.F_START_OF_WEEK(getdate(),1)-- Returns Date for Sunday select dbo.F_START_OF_WEEK(getdate(),2)-- Returns Date for Monday select dbo.F_START_OF_WEEK(getdate(),3)-- Returns Date for Tuesday select dbo.F_START_OF_WEEK(getdate(),4)-- Returns Date for Wednesday select dbo.F_START_OF_WEEK(getdate(),5)-- Returns Date for Thursday select dbo.F_START_OF_WEEK(getdate(),6)-- Returns Date for Friday select dbo.F_START_OF_WEEK(getdate(),7)-- Returns Date for Saturday
I thought I would also post an alternate way of doing the Start of Week instead of using the F_START_OF_WEEK function. These queries demo doing the Start of Week inline in a query, and use a similar algorithm to find the start of week, but the start day of week is hard coded.
I posted two versions. The first version is simpler, but it has a minor flaw that returns a false result if the start of week would be before 1753/1/1. For the vast majority of applications this would not be a problem. In the second, the algorithm is modified slightly to cause it to overflow if you pick a date that would result in a start of week before 1753/1/1. Note that the F_START_OF_WEEK function returns a NULL in this situation.
The demo queries use the F_TABLE_NUMBER_RANGE that is posted in another thread in order to generate dates to demonstrated the results: http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=47685
-- First demo query for Start of Week -- Returns bad result if the start of week would be before 1753/1/1 select DATE, Sun = dateadd(dd,(datediff(dd,-53684,a.DATE)/7)*7,-53684), Mon = dateadd(dd,(datediff(dd,-53690,a.DATE)/7)*7,-53690), Tue = dateadd(dd,(datediff(dd,-53689,a.DATE)/7)*7,-53689), Wed = dateadd(dd,(datediff(dd,-53688,a.DATE)/7)*7,-53688), Thu = dateadd(dd,(datediff(dd,-53687,a.DATE)/7)*7,-53687), Fri = dateadd(dd,(datediff(dd,-53686,a.DATE)/7)*7,-53686), Sat = dateadd(dd,(datediff(dd,-53685,a.DATE)/7)*7,-53685) from ( select DATE = convert(datetime,number) from F_TABLE_NUMBER_RANGE(36524,40000) ) a
-- Second demo query for Start of Week -- Modified to cause an error instead of returning a bad date -- if the start of week would be before 1753/1/1 select DATE, Sun = dateadd(dd,((datediff(dd,-53684,a.DATE+7)/7)*7)-7,-53684), Mon = dateadd(dd,((datediff(dd,-53690,a.DATE+7)/7)*7)-7,-53690), Tue = dateadd(dd,((datediff(dd,-53689,a.DATE+7)/7)*7)-7,-53689), Wed = dateadd(dd,((datediff(dd,-53688,a.DATE+7)/7)*7)-7,-53688), Thu = dateadd(dd,((datediff(dd,-53687,a.DATE+7)/7)*7)-7,-53687), Fri = dateadd(dd,((datediff(dd,-53686,a.DATE+7)/7)*7)-7,-53686), Sat = dateadd(dd,((datediff(dd,-53685,a.DATE+7)/7)*7)-7,-53685) from ( select DATE = convert(datetime,number) from F_TABLE_NUMBER_RANGE(36524,40000) ) a
Is there something I can do on the structure & do 4 calculated members pending how many weeks in a month, is there a simpler way where the next measure does not calculate by columns field.
If calculated member for each week, how do I do this, any example code?
So I need to select and average a whole bunch of data by week. Currently, I group by:
GROUP BY TO_CHAR(m.ENDTIME, 'IW')
and select using
SELECT ... TO_CHAR(m.ENDTIME, 'IW') Week
to summarize by week.
Since the first day of the year was a monday, it sets the weeks as monday-monday. I need to set the weeks to be Thursday 7pm to Thursday 7pm. How can this be achieved? Thanks.
I have a query that run every day to update a summary table which has week number and day of week. what I currently do is delete all records from the summary table and then summarize all the data availabe from four tables adn then populate the table daily. I want to know if I can run the update query to run only for the week number and day of week depending on getdate. Can I do this?
Function F_ISO_YEAR_WEEK_DAY_OF_WEEK returns the ISO 8601 Year Week Day of Week in format YYYY-W01-D for the date passed. W01 represents the week of the year from W01 through W53, and D represents the day of the week with 1 = Monday through 7 = Sunday.
The first week of each year starts on the first Monday on or before January 4 of that year, so that the year begins from December 28 of the prior year through January 4 of the current year.
This code creates the function and demos it for the first day, first date+60, and first date+364 for each ISO week/year from 1990 to 2030.
drop function dbo.F_ISO_YEAR_WEEK_DAY_OF_WEEK GO create function dbo.F_ISO_YEAR_WEEK_DAY_OF_WEEK ( @Datedatetime ) returnsvarchar(10) as /* Function F_ISO_YEAR_WEEK_DAY_OF_WEEK returns the ISO 8601 Year Week Day of Week in format YYYY-W01-D for the date passed. */ begin
declare @YearWeekDayOfWeekvarchar(10)
Select --Format to form YYYY-W01-D @YearWeekDayOfWeek = convert(varchar(4),year(dateadd(dd,7,a.YearStart)))+'-W'+ right('00'+convert(varchar(2),(datediff(dd,a.YearStart,@Date)/7)+1),2) + '-'+convert(varchar(1),(datediff(dd,a.YearStart,@Date)%7)+1) from ( select YearStart = -- Case finds start of year case whenNextYrStart <= @date thenNextYrStart whenCurrYrStart <= @date thenCurrYrStart elsePriorYrStart end from ( select -- First day of first week of prior year PriorYrStart = dateadd(dd,(datediff(dd,-53690,dateadd(yy,-1,aaa.Jan4))/7)*7,-53690), -- First day of first week of current year CurrYrStart = dateadd(dd,(datediff(dd,-53690,aaa.Jan4)/7)*7,-53690), -- First day of first week of next year NextYrStart = dateadd(dd,(datediff(dd,-53690,dateadd(yy,1,aaa.Jan4))/7)*7,-53690) from ( select --Find Jan 4 for the year of the input date Jan4= dateadd(dd,3,dateadd(yy,datediff(yy,0,@date),0)) ) aaa ) aa ) a
return @YearWeekDayOfWeek
end go
-- Execute function on first day, first day+60, -- and first day+364 for years from 1990 to 2030.
select DT= convert(varchar(10),DT,121), YR_START_DT = dbo.F_ISO_YEAR_WEEK_DAY_OF_WEEK(a.DT), YR_START_DT_60 = dbo.F_ISO_YEAR_WEEK_DAY_OF_WEEK(a.DT+60), YR_START_DT_365 = dbo.F_ISO_YEAR_WEEK_DAY_OF_WEEK(a.DT+364) from ( select DT = getdate()union all select DT = convert(datetime,'1990/01/01') union all select DT = convert(datetime,'1990/12/31') union all select DT = convert(datetime,'1991/12/30') union all select DT = convert(datetime,'1993/01/04') union all select DT = convert(datetime,'1994/01/03') union all select DT = convert(datetime,'1995/01/02') union all select DT = convert(datetime,'1996/01/01') union all select DT = convert(datetime,'1996/12/30') union all select DT = convert(datetime,'1997/12/29') union all select DT = convert(datetime,'1999/01/04') union all select DT = convert(datetime,'2000/01/03') union all select DT = convert(datetime,'2001/01/01') union all select DT = convert(datetime,'2001/12/31') union all select DT = convert(datetime,'2002/12/30') union all select DT = convert(datetime,'2003/12/29') union all select DT = convert(datetime,'2005/01/03') union all select DT = convert(datetime,'2006/01/02') union all select DT = convert(datetime,'2007/01/01') union all select DT = convert(datetime,'2007/12/31') union all select DT = convert(datetime,'2008/12/29') union all select DT = convert(datetime,'2010/01/04') union all select DT = convert(datetime,'2011/01/03') union all select DT = convert(datetime,'2012/01/02') union all select DT = convert(datetime,'2012/12/31') union all select DT = convert(datetime,'2013/12/30') union all select DT = convert(datetime,'2014/12/29') union all select DT = convert(datetime,'2016/01/04') union all select DT = convert(datetime,'2017/01/02') union all select DT = convert(datetime,'2018/01/01') union all select DT = convert(datetime,'2018/12/31') union all select DT = convert(datetime,'2019/12/30') union all select DT = convert(datetime,'2021/01/04') union all select DT = convert(datetime,'2022/01/03') union all select DT = convert(datetime,'2023/01/02') union all select DT = convert(datetime,'2024/01/01') union all select DT = convert(datetime,'2024/12/30') union all select DT = convert(datetime,'2025/12/29') union all select DT = convert(datetime,'2027/01/04') union all select DT = convert(datetime,'2028/01/03') union all select DT = convert(datetime,'2029/01/01') union all select DT = convert(datetime,'2029/12/31') union all select DT = convert(datetime,'2030/12/30') ) a
I need to build a report that compares a count on a certain day of the week by month by year by stacks. That is,for first Monday in October 2012 against first Monday in October 2013 for stack DM1 against first Monday in October 2014 stack DM1, same for second Monday, first Tuesday, second Tuesday, ect. Attached is a sample dataset and what I want to achieve.
I'm using Server 2012 R 2 with SQL Server 2012 Reporting Configuration Manager 11.0.5343.0 . The default time values (pTimeframe) for generating the report of my DPM Summary are the default values Day - Week - Month.
How can I define the value "Last 24 hours" for example?! Because the DPM Server does it backups the whole night starting at 08:00pm the day before and the result of the finished Backups of yesterday won't be shown when I use the defaut value "Day".
I want to send a subscription every morning for the backups only of the night before (not the whole week).
I can't seem to upload images so here's the link: [URL] ....
I need to get the last value of # Orders week avg in the current context (the highlighted value). The calendar dimension here is a week level one so I don't think I can use LASTNONBLANK. The measure is from the facts_sales table which is linked to a calendar dimension via a date key.
Any easier way to do what I am trying, without having a table with all the dates and week numbers.
Scenario: Week number of a DateTime Field where the year does not start on January 01<sup>st</sup> but April 1<sup>st</sup> to 31 Mach.
Issue: A week always starts on a Monday so if the 1<sup>st</sup> is on Tuesday, the first week is Tuesday – Sunday, if the 1<sup>st</sup> April is on Friday, the 1<sup>st</sup> week is Friday – Sunday and 7 day periods from there.
CREATE TABLE [dbo].[DailyCanx]( [ID] [int] IDENTITY(1,1) NOT NULL, [DateCancelled] [datetime] NULL ) ON [PRIMARY]
[code]....
I could create a table with all the start date and end dates of all the week numbers but I think there must be a better way. using SQL Server 2008 R2.
I need to generate the week ranges like this format :
Here from date and to date would be picked up from the table but just to make you understand i have hard coded it but this is the real date which is falling inside the table.
Note : Week should be generated from Monday to Sunday within desired date range