Dear folks,
thanks a lot for all who tried to help.
I have a working solution now, which I will hopefuly be able to forge
into some script, so all steps for many layers will run more automatic.
I maybe had other working solutions before, but I made the mistake and
didn't see that I had
Bernd -
I think, that you have misunderstood some of the basic tenets of
relational database technology:
* If you establish a straight 1:n relationships in a relational
database (as SQLite, SpatiaLite or Postgres/PostGis) you'll get at
least n rows in the resulting view; if you want it
Am 21.02.2014, 22:17 Uhr, schrieb Bo Victor Thomsen bo.victor.thom...@gmail.com:
Bernd -
I think, that you have misunderstood some of the basic tenets of
relational database technology:
If you establish a straight 1:n relationships in a
relational
Am 19.02.2014 20:06, schrieb Alex Mandel:
On 02/19/2014 10:43 AM, Bernd Vogelgesang wrote:
Am 19.02.2014 16:55, schrieb Alex Mandel:
On 02/18/2014 12:29 PM, Bernd Vogelgesang wrote:
Hi folks,
I'm quite desperate, cause I do not seem to understand what I'm doing
wrong, or if it's just not
Am 19.02.2014 20:02, schrieb Olivier Dalang:
Dear Bernd,
I encountered some similar problems with Spatialite views, but in the
end I had it working (sometimes) both in 2.0 and in master... I used
the manual method from the spatialite cookbook though (not the
Spatialite GUI).
I have no time
Bernd,
Here's a procedure which works here on QGIS master :
1. Create a spatialite layer countries with fields name and a geometry
column geom of type polygon.
2. Add some features to that layer.
3. In the DB manager, create the view:
CREATE VIEW countries_influence AS
SELECT rowid as rowid,
Am 20.02.2014 18:13, schrieb Olivier Dalang:
Bernd,
Here's a procedure which works here on QGIS master :
1. Create a spatialite layer countries with fields name and a
geometry column geom of type polygon.
2. Add some features to that layer.
3. In the DB manager, create the view:
CREATE
Try this -
CREATE VIEW Testview23 AS
SELECT a.PK_UID*1 + b.PK_UID AS NEWID, a.ROWID AS
ROWID, a.Geometry AS Geometry,
b.ora_nachweis_id AS ora_nachweis_id, b.zahl AS zahl,
b.jahr AS jahr, b.art AS art, b.sta AS sta
FROM ASK_VOEGEL AS a
JOIN ask_art AS b USING (id)
Afterwards you can do
Hi Olivier,
thank you for trying to help,
but, ermm, actually I do not see the point performing this. I have not
really a problem creating views, but more making these functional in QGIS.
Your example, as far as i understand, lacks a join-part completely, but
thats the culprit I fear.
OK
Hello Bernd,
In QGis 1.8 and 1.7, perhaps this will help (exporting *shp* to *csv* with *wkt
*geometry, also your observation entries to *csv*, and linking both*; *not
very productive, I suppose)
http://gis.stackexchange.com/questions/10788/how-to-join-multiple-records-to-single-feature
This does not directly answer your question about spatialite views, but you
might be able to use relationships directly in QGIS in the near future (I
think this is a 2.1 update). See:
http://blog.vitu.ch/10112013-1201/qgis-relations
-Steve
--
View this message in context:
Am 19.02.2014 16:55, schrieb Alex Mandel:
On 02/18/2014 12:29 PM, Bernd Vogelgesang wrote:
Hi folks,
I'm quite desperate, cause I do not seem to understand what I'm doing
wrong, or if it's just not possible to do.
I have a polygon layer in my spatialite database and a normal table with
bird
Am 19.02.2014 19:14, schrieb Steve G:
This does not directly answer your question about spatialite views, but you
might be able to use relationships directly in QGIS in the near future (I
think this is a 2.1 update). See:
http://blog.vitu.ch/10112013-1201/qgis-relations
-Steve
Hi Steve,
Dear Bernd,
I encountered some similar problems with Spatialite views, but in the end I
had it working (sometimes) both in 2.0 and in master... I used the manual
method from the spatialite cookbook though (not the Spatialite GUI).
I have no time to test now, but from what I recall, this does not
On 02/19/2014 10:43 AM, Bernd Vogelgesang wrote:
Am 19.02.2014 16:55, schrieb Alex Mandel:
On 02/18/2014 12:29 PM, Bernd Vogelgesang wrote:
Hi folks,
I'm quite desperate, cause I do not seem to understand what I'm doing
wrong, or if it's just not possible to do.
I have a polygon layer in
Maybe I'm unclear on the issue. If it's just how to get a view with
geometry to show up, I've found you often have register view with
spatialite metadata:
INSERT INTO views_geometry_columns
(view_name, view_geometry, view_rowid, f_table_name, f_geometry_column)
VALUES (theview, thegeometry,
Bernd Vogelgesang bernd.vogelgesang@... writes:
Guys, this is a very sad topic and I really can't understand how people
can work with 1:n data even on the most basic level under these
circumstances ...
Or doesn't anyone work with 1:n data? Well, the the world I'm living in
is full of that
Hi folks,
I'm quite desperate, cause I do not seem to understand what I'm doing
wrong, or if it's just not possible to do.
I have a polygon layer in my spatialite database and a normal table with
bird observations. There are many observation entries for each item in
the polygons.
They
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