web
You’re offline. This is a read only version of the page.
close
Skip to main content

Announcements

Check out the Community Spotlight Video Series
News and Announcements icon
Community site session details

Community site session details

Session Id :
Dynamics 365 Community / Forums / Finance forum / Get the latest datetim...
Finance forum

Get the latest datetime value for a computed field in data entity

(0) ShareShare
ReportReport
Posted on by Wekey 302

Hello All,

I have created a new data entity and I have 6 datasources in the entity with their respective. I have added a new computed field in which I have to assign the latest modifieddateTime among the 6 datasources available.

Please guide me on this. Please see the below screenshot for your reference,

1425.Capture.JPG

In the above screenshot, if the email is modified recently, I want to return the LogisticsElectronicAddress_Email modified field to my computed field.

Thanks.

Categories:
Development / Customization / SDK
I have the same question (0)
  • Verified answer
    Mea_ Profile Picture
    Mea_ 60,286 on at

    Hi Wekey,

    There is no "Max" function in SQL, however, it could be implemented using "case when", like:

    case
      when Col1 => Col2 then Col1
      when Col2 > Col1 then Col2
    end


    Case in AX could be implemented using SysCOmputedColumn::switch() method. Use cross references to find examples of switch usage in standard AX.

  • Community Member Profile Picture
    Community Member on at

    Im also facing the issue if you fiund the solution let me know

  • Suggested answer
    nmaenpaa Profile Picture
    nmaenpaa 101,172 Moderator on at

    Hi AX@beginner,

    actually the original question has been answered by ievgen, so you can find the verified solution right above your own message.

  • Suggested answer
    Martin Dráb Profile Picture
    Martin Dráb 240,281 Most Valuable Professional on at

    You can use MAX() function for this purpose:

    SELECT MAX(v) FROM (values (T1.ModifiedDateTime), (T2.ModfiedDateTime)) AS value(v)

  • Community Member Profile Picture
    Community Member on at

    Thank you Martin, it makes sense in SQL. What would that look like in X++?

    Having some difficulty trying to get the SQL as X++. 

    Trying to us SysComputedColumn::max() function. 

  • Martin Dráb Profile Picture
    Martin Dráb 240,281 Most Valuable Professional on at

    A computed column method is a method generating a piece of SQL code, therefore is SQL is indeed what you need.

    SysComputedColumn class is there just to help you to generate SQL code. Regarding SysComputedColumn::max(), this is what it does:

    return 'MAX('   _expression   ')';

    Therefore if you want to generate string 'MAX(v)', simply pass 'v' to max():

    SysComputedColumn::max('v');

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

News and Announcements

Check out the Community Spotlight Video Series

Quick Links

November Spotlight Star - Khushbu Rajvi

Congratulations to a top community star!

Forum Structure Changes Coming on 11/8!

In our never-ending quest to help the Dynamics 365 Community members get answers faster …

Dynamics 365 Community Platform update – Oct 28

Welcome to the next edition of the Community Platform Update. This is a status …

Leaderboard > Finance

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans