(back from grass-dev) On Thu, Nov 27, 2008 at 10:06 AM, Moritz Lennert <[EMAIL PROTECTED]> wrote: ... > And to respond to Peter's original query, i.e: > >> I have a vector layer FOO which is linked to two tables in layers 1 and 2. >> The categories for each vector element are different in layer 1 and (e.g. >> a certain area may have the cat value "51" in layer 1 and a cat value of >> "42" in layer 2). >> Let's assume that layer one has a VARCHAR column containing the names of >> the region (e.g. database_layer_1: 51,"Wolfenstein" database_layer_2: 42 ) >> >> If a new VARCHAR column is added to layer 2 by v.db.adcol, >> how can the the names from layer 1 be copied into it? > > > it should actually be (assuming that the varchar attribute in layer 1 is > called 'name': > > v.db.addcol FOO layer=2 col='name varchar(Size)' > v.to.db myroads layer=2 option=query col=name qlayer=1 qcolumn=name
Now a FAQ: http://grass.osgeo.org/wiki/Vector_map_attribute_transfer_between_connected_tables Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
