In my program I must manage some holidays. Each holiday can be an exact date, or a repetitive date.
For example:
-6th January of each years
-first day of each month of each year
How would you I save this information on db?
I can't use Datetime because with datetime I can't represent the particular cases like in the above example.
Any suggestion?
If it may concern, I am using TSQL
Sorry for my poor english.
The simple approach, without knowing more about your usage of these data, will be to have three numeric fields day, month, year and interpret them this way: If all three are filled, it's exactly that day and no other day. If year isn't filled, it's the day and month, repeating every year. If only the day is filled, it's the day, repeating every month.
If you have more intricate repetition schemes, you'll need an attribute for the repetition rule, like "every three months".
Of course, every query will need to contain some logic to interpret this scheme, but that's inevitable, unless you decide to have a list of all holidays, say the next 50 years.
I would suggest a 3 column design to store this conditions
Column to Specify whether this is a Day or WeekDay
Column to Specify Day/WeekDay Number (ie 1 to 30/31 for Day, 1 to 7 for WeekDay)
Column to Specify Monthly/Yearly occurrence.(means every month/year)
Eg:- For first day of each month,Something like this : DAY,1,MONTHLY
For Second Saturday of every month : WEEKDAY,14*,MONTHLY (*My Week start is Sunday)
This is not a perfect solution, you may have to add some more column to meet your business logic completely.
Related
I am having trouble with a line graph visual, where the data is organized by week number and by year number. However when I put the information into the visual and try viewing both 2020 & 2021, it rearranges the data in the order of 2021 & 2020. How do i get it to properly see the data in the correct order of week number by year?
I tried sorting the week # by an index value, also by year, also by week... with no luck
From the images it looks like there is no sort on the year and week, just by the week.
You need to add a column that has a year week key, that you can sort by.
For example 202101 for the week one of 2021.
Assuming you have a date like dd/mm/yyyy format, for example 11/04/2021 in DAX you can use:
YearWeek = YEAR('Table'[Date]) & WEEKNUM('Table'[Date])
This should now sort the data correctly. If you want you can add another column, that is more user friendly like WK01-2021, if you wish, you can then sort by that column, or use the new key column to sort the textual one.
If you just have a year and week column, create a new column that concatenates the two.
For this you should have a Calendar table, that contains a the date groupings that you you need. For example using CALENDARAUTO or you can do it in Power Query here or here.
This actually does not give the correct sequence, when you are dealing with single digit week numbers. For example when dealing with the first ten weeks of 2020, the sequence would be 20201, 202010,20202, 20203... which is obviously wrong.
Here you need a double digit Week number, so a small change in the suggested formula should do it:
YearWeek = YEAR('Table'[Date]) & FORMAT(WEEKNUM('Table'[Date]),"00")
The sequence should now work.
Need to get entities filtering by month instead of complete date values (E.g. Birthdays) using Google App Engine Text Search. On verifying GAE docs, I think it is not possible to query date fields by month directly.
So in order to filter them by month/date, we consider saving each date sub value like Date(DD), Month(MM) and Year(YYYY) as separate NUMBER field along with complete date field.
I verified locally that we can achieve by saving like this. But is this the correct way of saving dates by splitting each field when we want to query on date sub values?
Is there any known/unknown limit on number of fields per document apart from 10GB size limit in GAE Text Search?
Please suggest me.
Thanks,
Naresh
The only time NUMBER or DATE fields make sense is if you need to query on ranges of values. In other cases they are wasteful.
I can't tell from your question exactly what queries you want to run. Are you looking for a (single) specific day of the month (e.g., January 6 -- of any year)? Or just "anything in June (again, without regard to year)"? Or is it a date range: something like January 20 through February 19? Or July 1 through September 30?
If it's a range then NUMBER values may make sense. But if it's just a single specific month, or a single month and day-of-month combination, then you're better off storing month and day as separate ATOM fields.
Anything that looks like a number, but isn't really going to be searched via a numerical range, or done arithmetic on, isn't really a number, and is probably best stored as an ATOM. For example, phone numbers, zip codes (unless you're terribly clever and wanting to do something like "all zip codes in San Francisco look like 941xx" -- but even then if that's what you want to do, you're probably better off just storing the "941" prefix as an ATOM).
In Brazil my payday happen on every 5th day of month.
But if the 5th day is a saturday/sunday, then the payment will happen on the 4th day.
Same if 4th is saturday/sunday: then the payment will happen on 3rd day. And so on.
Is there any way to create a event that will work with Google Calendar and iCal?
You can achieve that with iCalendar, at least as far as it concerns weekends.
Consider the following rule:
DTSTART;TZID=US-Eastern:20160505T000000
RRULE:FREQ=MONTHLY;BYMONTHDAY=1,2,3,4,5;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-1
The rule is evaluated as follows:
FREQ=MONTHLY;BYMONTHDAY=1,2,3,4,5: expand to the 1st, 2nd, 3rd, 4th and 5th day of each month
BYDAY=MO,TU,WE,TH,FR: filter by week day, retain only work days/remove weekend days
BYSETPOS=-1: retain only the last day of the set
You can verify the result at http://recurrence-expansion-service.appspot.com/
Here are the first 100 instances.
It's not possible to achieve that for holidays though.
Update:
It's actually sufficient to specify
RRULE:FREQ=MONTHLY;BYMONTHDAY=3,4,5;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-1
Since the weekend is at most 2 days long, payday must fall on one of the 3rd, 4th or 5th day of the month. Again, this does not take holidays into account.
Holidays always need special consideration. Not only does RRULE not support this kind of logic for arbitrary days, sometimes it's difficult or even impossible to express holidays by an RRULE themselves. In some countries certain holidays are always on a specific day, except when the days falls on a weekend, in which case the holiday is on the Friday before or the Monday after the weekend. Or consider the Easter date and holidays relative to the Easter date, they can't be expressed by an RRULE at all.
Not to forget that some holidays may change every now and then (like "King's days" or "Queen's days" in certain countries).
The best you can do is to manage these manually and add an RDATE and an EXDATE if payday would fall on a holiday according to the RRULE above.
I am Using excel 2007 and running Windows 7 Pro. I have 50 Thousand rows with data.
I am trying to do a formula that gives me a value of the next upcoming holiday. I have 4 columns of holidays.
For example: Today's date is 6/3/2015 next upcoming holiday would be Father's Day and after that would be Halloween.
So, from Today's date to Father's Day the value would contain "Father's Day"
After Father's day, I want the formula to automatically replace "Father's day" with "Halloween" And doing the same to upcoming holidays after that.
I have researched forums and gotten ideas to compose a formula. I was able to create one, but the only way I got it to work was with the holiday's date instead of there name. If there is no other way of doing it besides that way I would be okay with it.
Only thing i'm concerned about is Opening, Saving, and Editing a file that large with a formula that big is very time consuming and unresponsive sometimes. I need help and would like to have a formula that dose what I need more efficiently and quicker.Any Ideas on shortening the formula?
Here is my formula:
=IF(SMALL(IF($A$2:$D$2>TODAY(),$A$2:$D$2),1)=DATE(YEAR(TODAY()),2,14),"Valentine's Day",IF(SMALL(IF($A$2:$D$2>TODAY(),$A$2:$D$2),1)=DATE(YEAR(TODAY()),4,5),"Easter Day",IF(SMALL(IF($A$2:$D$2>TODAY(),$A$2:$D$2),1)=DATE(YEAR(TODAY()),5,10),"Mother's Day",IF(SMALL(IF($A$2:$D$2>TODAY(),$A$2:$D$2),1)=DATE(YEAR(TODAY()),6,21),"Father's Day",IF(SMALL(IF($A$2:$D$2>TODAY(),$A$2:$D$2),1)=DATE(YEAR(TODAY()),10,31),"Halloween",IF(SMALL(IF($A$2:$D$2>TODAY(),$A$2:$D$2),1)=DATE(YEAR(TODAY()),12,25),"Christmas"))))))
I have dates in Array A2:D2
I have two differnt ways i can lay out my data. One way is with the holiday's name, and the other is with the holidays date. Examples are shown below... My formula displayed above is created to work with the first example below.
A B C D
2/14/2015 6/21/2015 10/31/2015 12/25/2015
OR
A B C D
Mother's day Father's day Halloween Christmas
I need it to read A-D search for the next upcoming holiday and return the value.
Thanks in advance for any help, tips, and ideas.
If the dates and names for the corresponding holidays are set up as such:
A B
2/14/2015 Valentine's Day
4/5/2015 Easter Day
5/10/2015 Mother's day
6/21/2015 Father's day
10/31/2015 Halloween
12/25/2015 Christmas
This formula can work to get the next holiday from today's date.
=INDEX(B2:B7,MATCH(TODAY(),A2:A7,1)+1)
If the names for the corresponding holidays are not within the list. You can hardcode them in the INDEX formula. Replace the first parameter with an array of hardcoded days, i.e:
{"Valentine's Day","Easter Day","Mother's Day","Father's day","Halloween","Christams"}
Even if we have the dates in a horizontal range, lets say A1:D1 we can still hardcode the days in an INDEX as such:
=INDEX({"Mother's Day","Father's day","Halloween","Christams"},MATCH(TODAY(),$A$1:$D$1,1)+1)
In Solr, is it possible to search for all records in a given month regardless of the year or day ? For example, the snippet below would match everything on 01.01.2013 - what I want to do is find everything that appeared on 01.01 for any year.
date:2013-01-01T00:00:00Z
No, not with a date field. Solr can only deal with ranges of dates, just like it only deals with ranges of numbers or ranges of strings. Asking Solr to only query a date field based on the first day of the month is like asking it to query on a numeric field and only give you odd numbers, or querying a string but only those starting with vowels.
What you'll need to do is break up the date into month and day components and then query on those. If your base field is sale_date, you'll also need sale_month and sale_day. Then you can query on month:3 to get everything that happened in any March, or day:1 and get everything for the first day of any month or month:3 AND day:1 to get everything that happened on any March 1st.