Min and Max Date between two tables

[allejot]

Hi guys, 

I am pretty new to DAX and I need a little help in solving an issue. Here my situation:

2 tables:

- PROJECT: project ID

- LEDGER LINES: posting date, project id

Desired outcome in table PROJECT: project ID, earlest date, latest date

I basically want to create 2 calculated columns in table project showing me earliest and latest activity in the project. Any help with the formulas I need for these 2 columns? Thanks!!

[_MG_]

Hi @allejot,

i would recommend creating a relationship between the two tables.

After this you can easily create your columns with the earliest and the latest date.
Therfore create a new column in the Project Table. 

EarliesteDate = MINX(RELATEDTABLE('Ledger Lines'), 'Ledger Lines'[PostingDate])

LatestDate = MAXX(RELATEDTABLE('Ledger Lines'), 'Ledger Lines'[PostingDate])

In this solution you are using something wichich is called "Row context". It is a very import thing within DAX. 
I hope this will help you.

Best Regards 
_MG_

[Anonymous · Accepted solution]

Hi  @allejot,

As per your question I have created the below table.

1. Create a new column as 

Earliest date = CALCULATE(Min('LEDGER LINES'[posting date]),FILTER('LEDGER LINES','LEDGER LINES'[Project Id]=project[Project id]))

2. Create a new column as 

Latest date = CALCULATE(MAX('LEDGER LINES'[posting date]),FILTER('LEDGER LINES','LEDGER LINES'[Project Id]=project[Project id]))

 

Results:

Best Regards,
Shreya

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