Re: [postgis-users] Beginning in PostGIS

[Lee Hachadoorian]

Luciano, I think I'm not understanding your goal. Do you have a shapefile that contains a mix of towns, neighborhoods, blocks and streets? Are you trying to load the shapefile but break the features up so that towns get inserted in a PostGIS towns table, neighborhoods get inserted in a PostGIS neighborhoods table, etc.? Best, --Lee On 04/18/2015 12:22 PM, James Keener wrote: I guess I'm still not fully understanding the problem. I don't understand what problem the normalization is causing you. You shouldn't need to duplicate the rows in different tables when you duplicate one in another table. To edit fields in QGIS you need to enable editing on the layer and then you can get end editable form for each feature or you can edit directly in the attribute table. Copy and pasting features in QGIS copied all of the attributes as well. Can you give a more complete example of the issue you're facing? Jim Jim On April 18, 2015 12:11:38 PM EDT, Luciano <br.analista...@gmail.com> wrote: Yes, I'm using QGIS. I agree, if I make a table in the database with the same structure the shape file is simple. The copy / paste works perfectly. But my question is how to update for example the blocks table, using the copy / paste, since the database structure is different. For example, if I copy a polygon layer shape, and try to stick to the database layer, the fields of the new polygon will be void. Note that my database blocks table does not have the same structure of the shape file because it is normalized (or should be), so the fields of two data sources do not match. In this case, what is the best practice? tia 2015-04-18 12:44 GMT-03:00 James Keener <j...@jimkeener.com>: tl;dr: Have you tried QGIS? What were you using to copy/paste before?  I didn't think straight editing of the DBaseIII files directly was a sane thing to do, as they're linked up with the shape and shape-index files. PostGIS is just a PostgreSQL database, so any editor that can allow you to edit/duplicate PostgreSQL tables could work.  As for mutating geometries, maybe QGIS?  That would also allow you to edit geometries, attributes, as well as duplicate features. Hope that helps, Jim On 04/18/2015 11:39 AM, Luciano wrote: > > Hi, > I wonder how can I update a postgresql postgis database before the > following scenario: > Always worked with shape files and update them used copy / paste between > files. > Now, think about creating a database in PostgreSQL and would like to > continue using copy / paste to update polygons, but in my database > structure is different from the shape file. For example: > Imagine that the shapefile have all the fields in one table, already in > the database, by reason of standardization, have these columns in tables > distinct. Below is an example of a register of towns. > > File shape, columns: > town ​​code; > town description; > Neighborhood code; > name of the neighborhood; > block code; > Street code; > street name; > > In Postgres / Gis could look like this: > > Cities table (data): > - Town id > - Description of town > > Neighborhoods table (data): > - Id of the neighborhood > - Description of the neighborhood > - Id of town (foreign key) > > Blocks table: > - Id of the court > - Block of code > - Town id (foreign key) > - Geometry, polygon > > Streets table: > - Street id > - Street name > - Town id (foreign key) > - Geometry, line > > How could update (insert) a block in postgresql table using copy / paste > the shape file? > Would have to create a trigger/procedure (instead of) to automate the > process? > Fields of shape file should be equal to the fields of database table? > Some practical example as a reference? > > tia > -- > Luciano > > > > _______________________________________________ > postgis-users mailing list > postgis-users@lists.osgeo.org > http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users > _______________________________________________ postgis-users mailing list postgis-users@lists.osgeo.org http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users -- Sent from my Android device with K-9 Mail. Please excuse my brevity. _______________________________________________ postgis-users mailing list postgis-users@lists.osgeo.org http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users -- Lee Hachadoorian Assistant Professor in Geography, Dartmouth College http://geospatial.commons.gc.cuny.edu http://freecity.commons.gc.cuny.edu

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