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

[Dylan Beaudette]

On Tuesday 09 June 2009, A. Marcia BARBOSA wrote:
> > why not using sqlite backend? dbf is very limited for any serious use.
>
> It may seem quite simple for some, but to me all these things are a
> complete mystery... I'm actually very surprised I became able to
> handle GRASS! I'm planning on switching all my databases to PostgreSQL
> within this year (after taking a course, of course), but right now I
> have to work with what I've got... dbf it is. I've just managed to
> calculate the column outside and re-connect it to the vector map.
>

Well, when you get a chance, here are some tips on converting DB back-ends:
http://casoilresource.lawr.ucdavis.edu/drupal/node/733

Note that there is a lot of red text on that page. It means "be careful!".

Cheers,
Dylan


-- 
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341