DESCRIPTION

v.db.connect prints or sets database connection for a vector map.

NOTE

If parameters for database connection are already set with db.connect, they are taken as default values and do not need to be spcified each time.

Attention: Removing a vector map will also delete all tables linked to it! If you use v.db.connect to link further tables to your map, it is advisable to make a copy from those tables first and connect the copied tables to the vector map (see also v.overlay).

EXAMPLE

Print database connection
v.db.connect -p map=vectormap

Print column types and names of table linked to vector map
v.db.connect -c map=vectormap

Connect vector map to database (DBF driver)

v.db.connect map=vectormap table=table field=1 key=cat driver=dbf database=/daten/grassdata/fire/PERMANENT/dbf

Connect vector map to database with variables
(note: single quotes must be used)
v.db.connect map=vectormap table=table field=1 key=cat driver=dbf database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf'

Connect vector map to database (PostgreSQL driver)

db.describe -c map=vectormap
v.db.connect map=vectormap table=table field=1 key=oid driver=pg database="host=myserver.itc.it,dbname=mydb,user=name" table=mytable key=id

AUTHOR

Radim Blazek, ITC-Irst, Trento, Italy