[GRASS-user] tables connection in database

[achim]

:-)

achim

Moritz Lennert schrieb:
> On 26/06/09 16:38, achim wrote:
>> Thats exactly the problem: It shows nothing.
>> None of my lines has any cat.
> 
> Well, then you need to add them with 'v.category option=add'
> 
> ;-)
> Moritz
> 
>>
>> Achim
>>
>> 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
>>>>
>>>> my_lines:
>>>>  |   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 ?
>>>
>>> Moritz
>>
>