Apportioning value over time based on date fields - sql

To preface my question, I did see the following link, and if it is the same query I fear my skills may be to primitive to confirm whether it is the case: Flat Apportionment of values across time periods, any help would be appreciated.
Please bear with be as my programming skills are still relatively basic.
I was wondering if it was possible to equally apportion values over time based on a date field?
Data is based on enrolment units, with a number value for hours and start and end date values.
Eg: Row level data
Unit Name
Department
Hours
Start Date
End Date
ABC
Electrical
30
1/01/2021
31/03/2021
DEF
Hospitality
50
1/03/2021
31/04/2021
Then wanted to equally distribute the hours by month based on the end date
End result to display would be something like this:
Total Hours by Department
Department
Jan 2021
Feb 2021
Mar 2021
April 2021
Electrical
10
10
10
Hospitality
25
25
Total
10
10
35
25
Is something like this even possible?
Again my skills are still basic and this may be a very stupid question. Apologies in advance.

Related

Add results to a row regarding the last 12 months rows- SQL Server

At my last meeting someone asked me if it was possible to hide people who where ill since a year from a dashboard. So I'm searching for the best way to actually KNOW who has been ill for 12 months.
I am working with a table with the number of days you've been absent for every kind of absence you could have, the number of days you should have been working that month, with a row per person, department and profession each month.
So it looks something like this :
PersonID
YEAR
MONTH
DEPARTMENT
PROFESSION
Absence1
Absence2
Absence3
WORKING DAYS OF THE MONTH...
11111
2021
07
HR
ASSISTANT
0
2
0
22
11111
2021
08
HR
ASSISTANT
0
0
0
22
==> So if I'm on a row of July 2021 I need to check the lines from June 2020 to June 2021.
My guess is that I need to add a column to this table who will say (with some kind of loop maybe) "if for the last 12 months (rows) the total number of days of absence equal the number of working days of the last 12 months then "ILL FOR A YEAR OR MORE" for each person (knowing that a person can work in more than one department or more than one profession so she'll have more than one row per month).
But I really have no idea how to actually write it in a script as I usually do very basic things. I'm using SQL SERVER and have 429 207 rows in the table. I'm thinking about doing it in the whole table and not only treating this month's rows because in the dashboard we show an historic.
Your table is heavily denormalized. If you want to represent all this information in the database, I would have expected the following tables, instead of just one:
Person
Department
Illness (list of illnesses)
IllnessAbsence (join table between Person and Illness)
Either way, you can get the information you need with something like this:
I've assumed you want the whole table, so you need a window function
We need to flip the logic on its head: exclude all rows which have no non-absence in the last 12 months
SELECT
PersonID,
YEAR,
MONTH,
DEPARTMENT,
PROFESSION,
ILLNESS1,
ILLNESS2,
ILLNESS3,
[WORKING DAYS OF THE MONTH]
FROM (
SELECT *,
NotIllLast12Months = COUNT(CASE WHEN DATEFROMPARTS(YEAR + 1, MONTH, 1) >= GETDATE()
AND ILLNESS1 + ILLNESS2 + ILLNESS3 = 0 THEN 1 END)
OVER (PARTITION BY ID)
FROM HETP_ABS
) abs
WHERE NotIllLast12Months > 0;

Distribute the amount value into multiple field base on date start and date end

I'd like to seek help with my access database. i would like to distribute value (format on currency) into multiple field base on date start and date end.
for example on:
if field Spend Amount value is - $10,000
if field start date is - Jan-2018
if Field end date is - April-2018
then the Jan field will be $2,500
and Feb field should be $2,500
Mar field also $2,500
april field also $2,500
basically the amount should be equally divided base on start month and end month category
appreciate your help please
The expression to put in your update can look something like this:
Amount/(DateDiff("m",StartDate,EndDate)+1)
This will divide 10.000 with 4. The 4 comes from the DateDiff that counts the number of months between the start and end (which results in 3) plus one. Make sure to test edge cases like Nov 30 to Dec 1, leap years and other problematic combinations.
Edit, clarification - this is not VBA. Put it in an update statement

How to find the leave balance month wise in teradata

I have sample data like this
EmployeeID Begin Date End Date Duration
168835 28/11/2017 28/11/2017 6
168835 31/10/2017 9/11/2017 32
and I want to find the leave taken by this employee month wise,so i have joined with calendar date and i want to summarise this data monthly.For e.g, he has taken leave from 31/10/2017 to 9/11/2017 for 32 hours and 6 hours in 28/11/2017. I want to exclude weekend from 31/10/2017 to 9/11/2017 period. I have used "day of week" flag to exclude the weekends, but now problem is when i roll up the data its giving me incorrect result. basically, i want to data like duration (32+6)=38 and this should be divided no of working days that is 9 in this case, so in oct month my data should be 4.22 and in nov month it should 33.77. can anyone please help me on this.Thanks in advance.

Data warehouse, SSAS

I have been given population data like this;
Year Region Population
----------------------------------
2012 District1 1000
2012 District2 1500
2012 District3 2000
Now I have to make a cube where a user can filter population in Month, Quarter and Year level. So I decided to enter data into a fact table with each and every month of the given year that means 12 records for each District with the same given number. So if a user asks for any month he will get the same count. But now the problem is if user does not filter it by Month, Quarter and Year I get the Sum of all the data that means District1 will display 12 times 1000 = 12000. How can I get 1000 for district1 at any given time? If data is in multiple years then also it should not sum them up. Is my approach wrong? Hope I am clear enough to explain the problem.
Your fact is a semi additive measure, more info at http://msdn.microsoft.com/en-us/library/ms175356.aspx

Need Excel Sheet to Calculate Complex Vacation Accrual and Use of Vacation Time

I've been working on this for a while and trying different styles... I need to develop a tracking spreadsheet (for 50 employees) that will calculate accruing vacation time and vacation time used based on the following parameters:
*Employees who have worked less than 3 years but past the 90 day anniversary with the company (at which they start accruing) (there is one more caveat on this... the accrual day is the 1st of the month of the month past the 90 days)[I figured this 90 day item out on my excel sheet] it will accrue at:
- 4 hours a month, at the end of the month, with a MAX cap of 72 hours that they can have stored (but if they use vacation time and fall below the 72 hours they can continue to accrue again up to 72 hours...)
*Employees who have worked more than 3 years but less than 6 years with the company carry over their prior vacation and begin to accrue from here onward at:
- 6.8 hours a month, at the end of the month, with a MAX cap of 122.4 hours that they can have stored (but if they use vacation time and fall below the 122.4 hours they can continue to accrue again up to 122.4 hours...)
*Employees 6 years and over with the company carry over their prior vacation and begin to accrue from here onward at:
- 10 hours a month, at the end of the month, with a MAX cap of 180 hours that they can have stored (but if they use vacation time and fall below the 180 hours they can continue to accrue again up to 180 hours....)
& yes, I need to be able to deduct vacation time used.
Does anyone have any suggestions for layout or for a formula that can do part of these functions? I appreciate any advice or suggestion on what else I can use!
I have created a test sheet, and was accruing based on these conditions for the first and started on the second set of rules (for years 3+).
However when I accrue to the max of 72 hours on the first policy, it no longer accrues correctly if they used vacation and fall under the 72 hours cap again.
I know this is a overcomplicated policy, but that is what the company wants and they will not budge.... Any help or advice is appreciated. I know my sheet isn't great.. but I'm trying options.
Below is the equation I used for the 90 day:
=IF(F2<TODAY()-90, F2+90, "90 Day Period")
Then to get the first day of the month after I used:
=IF(G2="90 Day Period","N/A",DATE(YEAR(G2),MONTH(G2)+1,1))
I tried using for the accrual of the first rule (but it has issues...):
=IF(N2="N/A","N/A",IF(N2<=36,MIN(72,((N2*4)-P2),72),(72-P2)))
For second rule:
=IF(AND(N2>36,N2<=72),MIN(122.4,((N2-36)*6.8)+Q2-S2),0)
Let
column A EmpName
column B EntryDate
Column C DaysSpent for the current month
Column D capped Accruel buffer at end of month
repeat Columns C and D month after month
example
01-Sep-2013 01-Oct-2013
EmpName EntryDate spent buffer spent buffer ... etc ...
.-------.-----------.-----------.------.-----------.------.
me 01-Jan-2010 0 12 0 18.8
you 01-Jun-2013 0 4 0 4
In order not to get spaghetti formulas I recommend to create some user defined functions in VBA, like
Function GetCap(EntryDate, ThisDate) As Single
Function GetMonthly(EntryDate, ThisDate) As Single
By experience it's easier to debug/maintain 2-3 nested If's or Select Case's in VBA than 92 character long formulas with no blanks, no comments etc. in the sheet. Should the business logic change, there's one code block to review - instead of dozens/hundreds of formula in a sheet that has grown for 3x12 months x 50 users.
The above functions may want the help of e.g.
Function EndOfMonth(MyDate) as Date
Function BeginOfNextMonth(MyDate) as Date
so that in the sheet you just
manually enter hours spent month after month
calculate new buffer as = MIN([oldbuffer] - [Spent] + GetMonthly(...), GetCap(...))
carefully use relative/absolute addressing to make the formula "copyable" across columns/rows, e.g.
row-absolute on ThisDate got from the header when copying downwards
column-absolute on EntryDate for each Emp when copying rightwards
You can of course use =GetCap(...) and =GetMonthly(...) directly in cells of your sheet to display intermediate results and for debugging purposes.
Be carefull when you compare dates
Tips:
3 years later is not always 365x3 days later
check what the VBA DateSerial() functions does for months > 12 and months < 0
the end of next month always is the first days of 2 months ahead minus 1 ... even in February of a leap year ggg
and post more questions if you get stuck on these functions.