## DESCRIPTION

db.copy allows the user to copy a table between two databases. Databases can be connected through different drivers (see examples below).

## NOTES

Attribute tables can be copied using db.copy and, when to be associated to a vector map, assigned to the map with v.db.connect. Current connection settings are saved in the file $LOCATION/vector_map/dbln.

## EXAMPLES

### From DBF to PostgreSQL

Storing table 'geonames.dbf' (in current directory) into PostgreSQL through ODBC:

    db.copy from_driver=dbf from_database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf' \
      from_table=geonames to_driver=pg to_database="host=pgserver,dbname=testdb" \
      to_table=geonames

### From PostgreSQL to DBF

    db.copy from_driver=pg  from_database="host=pgserver.example.org,dbname=testdb" \
      from_table=origtable to_driver=dbf \
      to_database='$GISDBASE/$LOCATION_NAME/$MAPSET/dbf' to_table=origtable

### From PostgreSQL to PostgreSQL with condition

    db.copy from_driver=pg  from_database="host=localhost,dbname=testdb" \
      from_table=geonames to_driver=pg to_database="host=localhost,dbname=testdb" \
      to_table=selection where="cat < 500"

### From DBF to SQLite

    db.copy from_driver=dbf from_database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf' \
       from_table=geonames_features to_driver=sqlite \
       to_database='$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db' to_table=geonames_features

    # convenient viewer:
    sqlitebrowser $HOME/grassdata/nc_spm_08/user1/sqlite/sqlite.db

### From SQLite to DBF

    db.copy from_driver=sqlite from_database='$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db' \
       from_table=ammprv to_driver=dbf to_database='$GISDBASE/$LOCATION_NAME/$MAPSET/dbf/' \
       to_table=ammprv

## SEE ALSO

db.connect, db.drivers, db.login, v.db.connect, v.clean

GRASS SQL interface

## AUTHOR

Radim Blazek, ITC-irst, Trento, Italy

Last changed: $Date$