[Qgis-user] One to many relationships

[Stefan Giese]

Hi Mattijs,

one to many relations in QGIS are defined in the project properties: 
Project -> Properties ->Relations, then press the Add Relation button 
and define the parent and child layers/tables and the corresponding 
fields. In the feature form (with the identify tool) you will see the 
relation automatically.

Mit freundlichen Grüßen
Stefan Giese
Projektleiter/Consultant
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Am 11.02.2020 um 16:50 schrieb mattijs.vollenberg at laposte.net:
> Hi,
>
> I encounter a problem with the possibility of defining a one to many 
> relationship in Qgis 3.
>
> I have one shapefile with points. Each point has an alias (ex: Blt-1, 
> Chp-1...), and information about this point.
> I then have a table, without any geographical information, with all 
> the measurements at each point (for exemple multiple measurements of 
> depth in Blt-1, and in Chp-1...). The alias of both tables are the 
> same. But in the second table, it is not unique.
> How do I establish a good one to many relationship?
>
> In other words, I would like that when I click on Blt-1, all the 
> measured depths appear.
>
> Is this possible?
>
> Thanks a lot for your help!
>
> Mattijs
>
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