[GRASS-user] tables connection in database
ak7 at jupiter.uni-freiburg.de
Fri Jun 26 10:38:06 EDT 2009
Thats exactly the problem: It shows nothing.
None of my lines has any cat.
Moritz Lennert wrote:
> On 26/06/09 15:24, achim wrote:
>> Hi Moritz,
>> thanks for reply and this detailed explanation.
>> I try to report my problem with an example:
>> reset to initial point
>> v.db.connect -d map=my_lines at achim
>> db.droptable -f table=testtable
>> | Type of Map: vector (level: 2)
>> | Number of points: 0 Number of areas: 0
>> | Number of lines: 2326 Number of islands: 0
>> | Number of boundaries: 0 Number of faces: 0
>> | Number of centroids: 0 Number of kernels: 0
>> | Map is 3D: No
>> | Number of dblinks: 0
>> Number of nodes: 2410
>> (with grass65 wx-gui)
>> v.db.addtable map=my_lines at achim table=testtable
>> Using user specified table name: testtable
>> Creating new DB connection based on default mapset settings...
>> Creating table with columns (cat integer)
>> The table <testtable> is now part of vector map <my_lines at achim> and
>> may be deleted or overwritten by GRASS modules
>> Select privileges were granted on the table
>> Reading features...
>> Updating database...
>> 0 categories read from vector map (layer 1)
>> 0 records updated/inserted (layer 1)
>> Current attribute table links:
>> layer <1> table <testtable> in database </home/achim/grass/sqlite_db>
>> through driver <sqlite> with key <cat>
>> Vector map <my_lines at achim> is connected by:
>> ?here no records updated/inserted
> Probably none of your lines have categories. What does v.category
> my_lines option=report show ?
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