Database query

General talk
1

I have - from the wiki - not clearly undestood: can I - with a postresql client - do a question to the Openstreetmap data, for example all underground stations in Munich?

Or must I first do a download, and then locally use osmosis, and then locally do the database query?

David

2

Of cause you need a postgres OSM database.
you can do it with the osm2pgsql tool.

http://wiki.openstreetmap.org/wiki/Osm2pgsql

3

Or use xapi to get the data you need, then import that locally into a postgis db.