Sum from/to date - date

I have 3 tables, one with stocktakes conducted last year, one with stocktakes conducted this year and one with sales. All of them are joined by date to one table where I have dates.
Now the question is what can I do to get table with:
store name/ last year stocktake date/ this year stocktake date/ sum of sales from last year stocktake date to this year stocktake date.
If you choose store, than stocktake date from one table, stocktake from second table all looks good, the problem is that I can't get sales to show from/to.
C2Csales = calculate(sum(PP_SalesLessTax[SalesLessTax]),PP_SalesLessTax[date] >= [ly date])
[ly date] is just a measure with last year stocktake date
I have a feeling that this have to be very easy but have no idea how to get this work
thanks
daniel

please see data model. It is a part of bigger model but I have trimmed it so it is clear what is this about.
data model
And here is what I need. Please see picture.
thanks for all responses
result required

You don't need two tables to simulate years. You can have just one. The idea of last year should be calculated by a measure. If you have a complete date table with a day for each row without missing days then you can build time intelligence.
If I get you, you need something like this two measures:
Sales = sum(PP_SalesLessTax[SalesLessTax]
Sales LY = CALCULATE ( sum(PP_SalesLessTax[SalesLessTax] , SAMEPERIODLASTYEAR ( DatesTable[DateColumn] )
With this two measures you can take both of them on same visualizations to compare them.
The idea of having from and to can be solved on visualizations. The slicer with a date type column can create a range filter data that will apply for this two created measures.

Related

How do we calculate difference and percent difference between two columns in tableau

]Difference and percent Difference must be calculated.
I cannot do Apr20-MAy20 because it is not always the same. I need to show the current month and previous month
So I did a relative filter to just show the current month and previous month.
So the difference of two columns should automatically change when the month changes.
Now how do I get the same month of prior year, how do I filter ?
I also need to calculate the difference of current year same month and previous year same month.
Thank you in advance for any help!
When I do table across difference, the difference value is overwriting the existing May and Apr month values as the below screen shot, how to show the difference in another column
Currently:
Below is Expected:
Sounds like you should create a custom filter for the dates. You want:
This month this year
This month last year
Last month this year
There are a number of ways you could do this. I'll give one example and will assume there aren't any future dates in your data set.
[DateFilter]: DATETRUNC('month',[YourDateField])>=DATETRUNC('month',DATEADD('month',-1,TODAY())) OR DATETRUNC('month',[YourDateField])=DATETRUNC('month',DATEADD('year',-1,TODAY()))
Put the to the filters shelf, set to True, and it should keep the months you want.
Then you can just use the standard table calculations to calculate Difference and Percent Difference.
Note, the formula isn't tested, just typed directly into here, let me know if it doesn't work
Based on your comments look at creating separate calculations for to YoY / MoM / etc calculation. That also means creating calculated fields to isolate the Current Month, Previous Month, etc.
For example, the current month:
[isCM]: DATETRUNC('month',[YourDateField]) = DATETRUNC('month',TODAY())
The previous month:
[isPM]: DATETRUNC('month',[YourDateField]) = DATETRUNC('month',DATEADD('month',-1,TODAY()))
Then month on month, something like:
[MoM]: (SUM([Measure])*INT([isCM]))/(SUM([Measure])*INT([isPM]))
To make your table check this article about using the placeholder technique to create tables in Tableau

Extract highest date per month from a list of dates

I have a date column which I am trying to query to return only the largest date per month.
What I currently have, albeit very simple, returns 99% of what I am looking for. For example, If I list the column in ascending order the first entry is 2016-10-17 and ranges up to 2017-10-06.
A point to note is that the last day of every month may not be present in the data, so I'm really just looking to pull back whatever is the "largest" date present for any existing month.
The query I'm running at the moment looks like
SELECT MAX(date_col)
FROM schema_name.table_name
WHERE <condition1>
AND <condition2>
GROUP BY EXTRACT (MONTH FROM date_col)
ORDER BY max;
This does actually return most of what I'm looking for - what I'm actually getting back is
"2016-11-30"
"2016-12-30"
"2017-01-31"
"2017-02-28"
"2017-03-31"
"2017-04-28"
"2017-05-31"
"2017-06-30"
"2017-07-31"
"2017-08-31"
"2017-09-29"
"2017-10-06"
which are indeed the maximal values present for every month in the column. However, the result set doesn't seem to include the maximum date value from October 2016 (The first months worth of data in the column). There are multiple values in the column for that month, ranging up to 2016-10-31.
If anyone could point out why the max value for this month isn't being returned, I'd much appreciate it.
You are grouping by month (1 to 12) rather than by month and year. Since 2017-10-06 is greater than any day in October 2016, that's what you get for the "October" group.
You should
GROUP BY date_trunc('month', date_col)

Previous Year YTD till Same Date

I have requirement, Previous Year YTD till the same date as YTD is returing results for example if the Records in my table is present from 1-jan-2016 to 9-May-2016 then this year YTD will Calculate till 9-May-2016 (this is Working fine ) and Previous year YTD also should calculate till 9-May-2015 from 1-Jan-2015 not for whole year or whole month
I had tried all the solutions mentioned here :- DAX Pattern
MSDN
But didnt get any result yet,
After trying so many solutions finally got the solutions which solves my purpose.
In my fact table I added a column named Invoicedate and format is "YYYYMMDD" the similar column in Date table names as Datekey and fomrat is "YYYYMMDD".
Here is the calculation for YTD:
Revenue YTD:=CALCULATE([Revenue],DATESYTD('Date Master'[Date],"03-31"),ALL('Date Master'))
And the Here is the calculation for Previous Year YTD:-
Revenue PY:=CALCULATE([Revenue YTD],FILTER(ALL('Date Master'[Datekey]),FILTER(VALUES('Sales Details'[InvoiceDate]),'Sales Details'[InvoiceDate]-10000=EARLIER('Date Master'[Datekey]))),ALL('Date Master'))
Benefit of this solution is, it handles the leap year issue well. I got the idea of this solution from :- Chris Webb's BI Blog

Creating Bins in Tableau for Days in a Week

Could someone please explain me creating BINS based on Weekdays in Tableau? I tried creating different Calculation Fields but it won't work
You're working too hard.
Tableau already knows how to bin values by dates at many levels of granualarity: such as year, month, day, weekday, hour etc. So you don't need to create a new field to bin dates by the day of the week. (creating bins is not difficult, it's just already available in this case)
Just put a discrete (blue) date or datetime field on a shelf. You'll see the date level of granularity displayed like, say, YEAR(MyDateField) with a leading plus sign.
You can either
click on the plus sign to drill down by adding a second level, say MONTH(MyDateField)
or
right click on the field to select the date level of granularity you want
Alex's Answer is exactly correct, Tableau will perform the operation automatically. What is great about is that you can select various formats (Full day name, number, 1 letter or 3 letter day etc.).
However if you absolutely need to you can used this formula:
datepart('weekday',[Date])
to give you the 1 (Sunday) to 7 (Saturday) value if you need it for something other reason, say another calculation.

sqlite3: retrieving data based on month and year from local database in iphone

In my application I have to store data month wise and year wise. So for this, I have to store the data along with date into database.
My requirement is how to store in terms of date and how to retrieve data with group by month and year. In my app I am showing a table of years and months, based on selected month and year. I have to show the data in a dashboard.
My problem is in storing and retrieving date data types.
Use the following syntax
SELECT * FROM DATABASE WHERE REQUIREDDATEFIELD LIKE '%2011-01%';
2011 is supposed to be the year
01 is supposed to be the month
DATABASE is supposed to be your mysql database name
REQUIREDDATEFIELD is supposed to be the field you are hoping to sort from month and year.
like '%2011-01%' is supposed to be meaning, all the records containing 2011-01 in the given field. It could be in the beginning or the end or in the middle of a large text, so having % in both the beginning and end of the search criteria is a good habit.
You just select either for a specific month or year or month and year. Or if you want all, you use GROUP BY.
I know this answer is quite vague and generic, but that's because your question is vague. You probably need to be more specific. Explain not only what you want to do, but what you have tried, and in which way that didn't work.