[Qgis-user] Definition Query

[Alister Hood]

Note that doing it from the layer properties uses the layer provider's
query capability, so that only the matching features are displayed in
the map canvas.
Doing it from the attribute table does not use the layer provider's
query capability, so it works with providers that don't have a query
capability, and does not affect what is displayed in the canvas.

Alister


> Date: Thu, 06 Oct 2011 14:59:11 +0100
> From: Giovanni Manghi <giovanni.manghi at gmail.com>
> Subject: Re: [Qgis-user] Definition Query
> To: John Callahan <john.callahan at udel.edu>
> Cc: Qgis-user at lists.osgeo.org, Antonios Marsellos
> 	<marsellos at gmail.com>
> Message-ID: <1317909551.5337.2.camel at sibirica>
> Content-Type: text/plain; charset="UTF-8"
> 
> you can do it also from the table of attributes.
> 
> 
> 
> On Thu, 2011-10-06 at 09:21 -0400, John Callahan wrote:
> > Very similar to ArcGIS.  In the Layer Properties window, check the
> > General tab, then Subset -> Query Builder.
> >
> > - John
> >
> >
> > ***********************************************
> > John Callahan, Research Scientist
> > Delaware Geological Survey, University of Delaware
> > URL: http://www.dgs.udel.edu
> > *************************************************
> >
> >
> >
> > On Thu, Oct 6, 2011 at 9:16 AM, Antonios Marsellos
> > <marsellos at gmail.com> wrote:
> >         Dear all, I have another question as I am trying to migrate
> >         from ArcGIS to QGIS.
> >
> >
> >         How could I make a "Definition Query" (similar to the one in
> >         properties of a layer in ArcMAP) and present only my query
in
> >         QGIS project? In other words, I have a states.shp file, and
I
> >         need to show only NY state. How can I do this in QGIS?
> >         Andonis