Re: [GRASS-user] concatenating/combining two table fields for multi-field join
On 06/08/13 12:24, Timmie wrote: How can I perform the corresponding command on the command for the GRASS table? In http://grass.osgeo.org/grass65/manuals/sql.html I found: v.db.update vectormap column=column3 qcolumn=column1 || column2 running the command on my data yields: #dbmi: Protocol error #dbmi: Invalid procedure 107 #ERROR: Fehler beim Ausführen von: 'UPDATE vectormap SET joinkey=a_value What causes this error and what could I do to prevent it? Which database backed are you using (dbf, sqlite, postgresql) ? The manual does state that this command does not work for DBF driver. Moritz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] concatenating/combining two table fields for multi-field join
How can I perform the corresponding command on the command for the GRASS table? In http://grass.osgeo.org/grass65/manuals/sql.html I found: v.db.update vectormap column=column3 qcolumn=column1 || column2 running the command on my data yields: #dbmi: Protocol error #dbmi: Invalid procedure 107 #ERROR: Fehler beim Ausführen von: 'UPDATE vectormap SET joinkey=a_value What causes this error and what could I do to prevent it? ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] concatenating/combining two table fields for multi-field join
Hello, would like to make a table join based on two fields. So suppose I have to create a new temporary join field (joinkey). I have the fields area (C2) and value (D2), per one area these do not repeat. So in Excel I did for preparing the source table for the other values: =(C2 D2) How can I perform the corresponding command on the command for the GRASS table? Thank a lot in advance, Timmie ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
