[GRASS-user] Merge vector table with .dbf file [NHDPlus]

Stephen Sefick sas0025 at auburn.edu
Wed Feb 1 10:47:43 EST 2012

Thanks for the help.  What I ended up doing is reading the .dbf files 
into R with the foreign packages read.dbf; merged the data together on 
the COMID; wrote out the data with write.dbf; connected it to the 
vector with v.db.connect; and all is well.  Again many thanks for your 


On Wed 01 Feb 2012 08:47:37 AM CST, Moritz Lennert wrote:
> On 01/02/12 13:42, Stephen Sefick wrote:
>> All:
>> I have the national hydrography dataset plus [NHDPlus]. The data came
>> with a rather limited table of information by design. I would like to
>> add a table with stream line attributes to the vector table. There is a
>> common ID called COMID. I just want to merge the two tables together on
>> COMID. How do I do this? I have thought of just merging the two tables
>> together pre-import? Many thanks for any help.
> Try db.in.ogr + v.db.join in a mapset with an SQL backend, e.g. SQLite 
> instead of dbf.
> Moritz
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Stephen Sefick
Auburn University                                         
Biological Sciences                                      
331 Funchess Hall                                       
Auburn, Alabama                                        
sas0025 at auburn.edu                                  

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annoying little problems of being mammals.

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