[GRASS-user] occurrence of attributes in vektortable

[Patton, Eric]

On Fri, 2008-03-07 at 07:17 -0500, Patton, Eric wrote:
>>>how can i get a list of all different occurences in a column of an 
>>>attributetable.
>> 
>> v.db.select map=mapname column=columnname | uniq (for vector with a connected attribute table)
>>

>It doesn't work for me. What am I doing wrong?

Omit the -u flag from uniq.

>Do the "map" and "column" parameters exist for db.select?

Whoops; my mistake. No, those parameters don't exist for db.select.
db.select uses table= instead of map=.

There also isn't a column parameter, so you'd have to use some SQL 
commands to get the column you need. 

Note you can omit the column heading name in the output in both db.select and v.db.select 
by using the -c flag:

db.select -c table=Matthew_2005013_Navigation | head -10
1|1860029|636162.13|5156960.89
2|186002910|636194.64|5157012.42
3|186002920|636229.43|5157064.57
4|186002930|636263.7|5157116.26
5|186002940|636297.62|5157169.61
...

~ Eric.




db.select table=TABLE 


> 
> ~ Eric.

Nikos