I have a table with a bunch of dates (option maturity dates to be precise). I need to query this database to find the last day of a specific week that is stored in the table.
All I will be given to query this table is the year, the month and the specific week. And based on this I need to find the date that is stored in the table that matches this.
I've created the following query to find this specific date March 28 2013
SELECT M_SETNAME, M_LABEL, M_MAT FROM OM_MAT_DBF
WHERE M_SETNAME = 'IMM_OSET '
AND MONTH(M_MAT) = 3
AND YEAR(M_MAT) = 2013
AND ((DATEPART(day,M_MAT)-1)/7 + 1) = 5
Do you guys have any idea of how I can change the last condition so that March 28th will be considered the 5th week of the month and not the 4th week as it is currently doing.
You can also use DATEPART to get the number of the week (in the year), but then, you could also get the 1st of each month, and take the week too so you can have: WEEK OF MY DATE - WEEK OF FIRST DAY FOR THIS MONTH + 1.
Here you have an example...
DECLARE #Dt datetime
SELECT #Dt='03-28-2013'
SELECT DATEPART( wk, #Dt) - DATEPART( wk, Convert(Date,Convert(varchar(4),YEAR(#Dt))
+ '-' + Convert(varchar(2), MONTH(#Dt))
+ '-' + Convert(varchar(2), 1))) + 1
EDIT: Also, looking at your code, you could add the CEILING. If the result == 2.7, it means it passed the 2nd week, however, it gets rounded to 2 when it should actually be 3.
If you add the CEILING and the CONVERT to decimal should work..
SELECT MONTH(#Dt),
YEAR(#Dt),
((CEILING(Convert(decimal,DATEPART(day,#Dt)-1)/7)) + 1)
Related
I have inherited a query from an old MS Access DB and cannot for the life of me figure out what was trying to be done in this date parameter function. I normally only use SQL and this seems a bit different. Can any one assist in describing what this logic is doing?
use pdx_sap_user
go
select po_number,
po_issue_date
from vw_po_header
where po_issue_date > getDate() And PO_issue_date < DateAdd("d",-1,DateAdd("m",8,DateAdd("d",-(Day(getDate())-1),getDate())))
You can de-obfuscate it a lot by using DateSerial:
where
po_issue_date > getDate() And
po_issue_date < DateSerial(Year(getDate()), Month(getDate()) + 8, 0)
First: there is no getDate() function in Access. Probably it should be Date() which returns the current date.
Now starting from the inner expression:
Day(Date()) returns the current day as an integer 1-31.
So in DateAdd("d", -(Day(Date())-1), Date()) from the current date are subtracted as many days as needed to return the 1st of the current month.
Then:
DateAdd("m", 8, DateAdd("d", -(Day(Date())-1), Date()))
adds 8 months to the the 1st of the current month returning the 1st of the month of the date after 8 months.
Finally:
DateAdd("d", -1,...)
subtracts 1 day from the date returned by the previous expression, returning the last day of the previous month of that date.
So if you run today 13-Sep-2019 this code, the result will be:
30-Apr-2020
because this is the last day of the previous month after 8 months.
I think the following:
Take the current date
Substract the current day of month -1 to get the first day of current month
Add 8 month to this
Substract 1 day to get the last day of the previous month
So it calculates some deadline in approx 8 months.
But I wonder how a PO issue date can be in the future...
I have a year column that contains things like 2013, 2012, etc and a month column that displays 1-12. I need to use these columns to create a date that always pulls the last day of the month that the year and month represents as yyyymmdd. For example, if year = 2018 and Month = 3, I need the date to display as 20180331. The year and month fields are numeric. I am using SQL Server 2014 Management Studio Any ideas on how to do this?
You could shoe horn it this way:
select REPLACE(CAST(EOMONTH(DATEFROMPARTS(2018,2,1)) as varchar(20)), '-','')
I was able to find a formula that works, although the answer above is smaller in code and may be a more efficient way to accomplish the same thing, which I can test out. Here is the code that I was able to get to work for those interested.
CONVERT(VARCHAR(10),eomonth(CAST(CAST(FV_RPT_EMPLOYEECENSUS_ASOF.HRYEAR AS VARCHAR(4)) + RIGHT('0' + CAST(FV_RPT_EMPLOYEECENSUS_ASOF.HRPERIOD AS VARCHAR(2)), 2) + RIGHT('0' + CAST(01 AS VARCHAR(2)), 2) AS DATE)),112)
my user table is as follows:
birhtMonth: int
dayOfBirthday: int
HireDate: Date
REQUIREMENT: i want to get all upcoming birthdays and hire dates (day/month year is excluded here) in next 6 months, putting in consideration that for current month the day should be greater than today, so here's what i did:
#Query("from User u where ( (u.birthMonth in (8,9,10,11,12,1)) or (month(u.hireDate) in (8,9,10,11,12,1)) ) and u.company = :company")
this gets all upcoming birthdays & hire dates in next six months but it gets birthdays & hire dates in this month for days before & after current day, and it should only get results > current day and ignore results < current day in this month.
EXAMPLE:
today's date is 8/3/2013, if there's birthday with birthMonth=8 and dayOfBirth=3 or 2 or 1 it should be ignored only dayOfBirth > 3 in current month is considered, also if there's hirDate like:
2011-08-01
2012-08-02
2012-08-03
they should be ignored too, please advise how to solve this in sql or hql.
Your hireDate is of type Date, so use a date comparison and use between such as:
(hireDate between :toDayParam and :sixMonthLaterParam)
for birthDate, you can compare with lpad(birthMonth, 2, 0) + lpad(birthDate, 2, 0) but you shall care about whether six month later is in next year or current year.
I think your looking for the DATE functions. They can greatly help you out here. Specifically the DATEADD function. Take a look at the code I made here.
SELECT * FROM dbo.product
WHERE dbo.product.stockDate > GETDATE()
AND dbo.product.stockDate < GETDATE() + DATEADD(month, 6, dbo.product.stockDate)
AND dbo.product.expirationDate > GETDATE()
AND dbo.product.expirationDate < GETDATE() + DATEADD(month, 6, dbo.product.expirationDate)
This will guarantee that the stockDate and the expirationDate are greater than the current date and less than the current date + 6 mo. DATEADD works as follows DATEADD(-what you want to increment by-, -how much you want to increment-, -date to add to-).
I want to calculate Last Week Number of Month in SQL. I am having Week Number and Year.
Eg. If I pass WeekNo=51 , Year=2008 , than function should return LastWeekofMonth= 52.
I want to calculate Week number using below standards.
According to ISO 8601:1988 that is used in Sweden the first week of the year is the first week that has at least four days within the new year.
So if your week starts on a Monday the first Thursday any year is within the first week. You can DateAdd or DateDiff from that.
Please Help me..........
Thanks in advance.
SELECT WEEK(LAST_DAY(STR_TO_DATE('2008-51-Mon', '%x-%v-%a')));
Should do the trick for getting the last week number of month with MySQL :
I first convert to a date, then I get the last day of the month (here: 2008-12-31), then I compute the week of the last day of the month (52).
It should be easy to turn it into a function.
Hope this helps.
This is fairly straightforward if you use a calendar table. The month you need is given by this query.
select iso_year, month_of_year
from calendar c
where iso_year = 2008 and iso_week = 51
group by iso_year, month_of_year
--
iso_year month_of_year
2008 12
So you can use that result in a join on the calendar table, like this.
select max(c.iso_week) as last_week_of_month
from calendar c
inner join
(select iso_year, month_of_year
from calendar c
where iso_year = 2008 and iso_week = 51
group by iso_year, month_of_year) m
on m.iso_year = c.iso_year and m.month_of_year = c.month_of_year;
--
last_week_of_month
52
Here's one example of a calendar table, but it's pretty thin on CHECK constraints.
If you're using SQL Server, you can perform a calculation by using a master table, without creating a calendar table. This fellow gives you a very good explanation, which I recommend that you read. His SQL for calculating the first and last Sundays of each month can be adapted for your use:
declare #year int
set #year =2011
select min(dates) as first_sunday,max(dates) as last_sunday from
(
select dateadd(day,number-1,DATEADD(year,#year-1900,0))
as dates from master..spt_values
where type='p' and number between 1 and
DATEDIFF(day,DATEADD(year,#year-1900,0),DATEADD(year,#year-1900+1,0))
) as t
where DATENAME(weekday,dates)='sunday'
group by DATEADD(month,datediff(month,0,dates),0)
Edit: Once you have the date of the Thursday, you can get the week number from that date like this:
DECLARE #Dt datetime
SELECT #Dt='02-21-2008'
SELECT DATEPART( wk, #Dt)
I want to find first day month of month and also like 3rd day or 5th day ,15th day or any day of the month .So how to find through query.I know how to find first day and last day of month.Mainy I want find other days.
For those of you following along who may not know how to get the First Day of the month in SQL Server you can do so with something like this. This will also give you the 5th, 10th or whatever you need.
DECLARE #FirstDay DATETIME
SET #FirstDay = (DATEADD(MONTH, DATEDIFF(MONTH, -1, GETDATE()) - 1, -1) + 1)
SELECT GETDATE() AS CurrentDay
, #FirstDay AS FirstDay
, DATEADD(d, 10, #FirstDay-1) AS TenthDay
The -1 after the #FirstDay in the DateAdd is because the DateAdd will add the numbers of days onto the firstday, which will give you the 11th in that example. Of course you could just add one less day to make it work without the -1 but I prefer including it. Suit yourself.
If you know how to find the first day of a month, you can add the 2-day, the 4-day or the 14-day interval to the first day of the month to get, respectively, the 3rd, the 5th or the 15th day of the month.
Similarly you can get any day of the month by simply adding the proper number of days.
Different RDBMSs may offer different syntax to achieve the goal. Assuming #MonthBeginning to be a date or datetime value representing the first day of a month, here's how you can get, for example, the 5th day of the same month in Microsoft SQL Server:
SELECT DATEADD(day, 4, #MonthBeginning) AS FifthDay
Again, it may not be the way you should do that if your RDBMS is not MS SQL Server.