<p dir="ltr">This is good also.<br></p>
<p dir="ltr">http://www.qgistutorials.com/en/docs/performing_table_joins.html</p>
<p dir="ltr">Google QGIS one-to-many or many-to-one join and you should find more.</p>
<p dir="ltr">Mmqgis plugin may also have options for you.<br>
Cheers!</p>
<p dir="ltr">Nicolas Cadieux M.Sc.<br>
Les Entreprises Archéotec inc. <br>
8548, rue Saint-Denis Montréal H2P 2H2<br>
Téléphone: 514.381.5112 Fax: 514.381.4995<br>
www.archeotec.ca</p>
<div class="gmail_quote">On Jan 24, 2016 10:20, "Matthias Kuhn-2 [via OSGeo.org] " <<a href="/user/SendEmail.jtp?type=node&node=5246975&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>> wrote:<br type='attribution'><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br />
<br />
There are a number of things to be done to properly support
different usecases:<br />
<br />
<b>Join / Aggregate functions support in expressions</b><br />
<br />
Some sort of join possibility should be added to expressions
(similar to the get_feature function) and some aggregate functions.
E.g.<br />
<br />
join( "otherlayer"."name", ',' ) RIGHT JOIN otherlayer ON
otherlayer."id" = this."fk"<br />
<br />
to create a string like "A,B,C" from three linked entries with name
A, B and C.<br />
<br />
Or<br />
<br />
average( "otherlayer"."population" ) RIGHT JOIN otherlayer ON
otherlayer."id" = this."fk"<br />
<br />
etc...<br />
<br />
<b>Relation support for print composer</b><br />
<br />
Create tables with information from related entries based on the
current atlas feature.<br />
<br />
Other ideas? I'm sure there is a lot more to be done :-)<br />
<br />
Matthias<br />
<br />_______________________________________________
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