[GRASS-user] exponentiation with v.db.update

[Moritz Lennert]

On 09/06/09 18:38, A. Marcia BARBOSA wrote:
> Yeah I'm doing it on a dbf attribute table. It doesn't work with the
> quotes, nor with power(10,x) - error message always.
> Does anyone know how to do an exponentiation update on a dbf table? Or
> do I really have to do the update outside GRASS and then re-connect
> the table?

SQL for dbf is very limited [1,2], so you would have to either do it 
outside GRASS, or switch to a more sophisticated SQL backend.

Moritz

[1]http://grass.osgeo.org/grass64/manuals/html64_user/sql.html
[2]http://grass.osgeo.org/grass64/manuals/html64_user/grass-dbf.html