This is good also.
http://www.qgistutorials.com/en/docs/performing_table_joins.html
Google QGIS one-to-many or many-to-one join and you should find more.
Mmqgis plugin may also have options for you.
Cheers!
Nicolas Cadieux M.Sc.
Les Entreprises Archéotec inc. 
8548, rue Saint-Denis Montréal H2P 2H2
Téléphone: 514.381.5112  Fax: 514.381.4995
www.archeotec.ca
On Jan 24, 2016 10:20, "Matthias Kuhn-2 [via OSGeo.org] "
<ml-node+s1560n5246972...@n6.nabble.com> wrote:
Hi,
There are a number of things to be done to properly support
different usecases:
Join / Aggregate functions support in expressions
Some sort of join possibility should be added to expressions
(similar to the get_feature function) and some aggregate functions.
E.g.
join( "otherlayer"."name", ',' ) RIGHT JOIN
otherlayer ON
otherlayer."id" = this."fk"
to create a string like "A,B,C" from three linked entries with name
A, B and C.
Or
average( "otherlayer"."population" ) RIGHT JOIN
otherlayer ON
otherlayer."id" = this."fk"
etc...
Relation support for print composer
Create tables with information from related entries based on the
current atlas feature.
Other ideas? I'm sure there is a lot more to be done :-)
Matthias
_______________________________________________
Qgis-user mailing list
[hidden email]
List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe:
http://lists.osgeo.org/mailman/listinfo/qgis-user
If you reply to this email, your message will be added to the
discussion below:
http://osgeo-org.1560.x6.nabble.com/linking-n-to-1-data-tp5246499p5246972.html
To start a new topic under Quantum GIS - User, email
ml-node+s1560n4125267h38@n6.nabble.com
To unsubscribe from Quantum GIS - User, click here .
NAML
--
View this message in context:
http://osgeo-org.1560.x6.nabble.com/linking-n-to-1-data-tp5246499p5246975.html
Sent from the Quantum GIS - User mailing list archive at Nabble.com._______________________________________________
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
