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db.copy(1grass)

NAME

   db.copy  - Copy a table.
   Either  'from_table'  (optionally with 'where') can be used or 'select'
   option, but not 'from_table' and 'select' at the same time.

KEYWORDS

   database, attribute table, SQL

SYNOPSIS

   db.copy
   db.copy --help
   db.copy  [from_driver=name]   [from_database=name]    [from_table=name]
   [to_driver=name]   [to_database=name]  to_table=name  [where=sql_query]
   [select=string]    [--overwrite]   [--help]    [--verbose]    [--quiet]
   [--ui]

   Flags:
   --overwrite
       Allow output files to overwrite existing files

   --help
       Print usage summary

   --verbose
       Verbose module output

   --quiet
       Quiet module output

   --ui
       Force launching GUI dialog

   Parameters:
   from_driver=name
       Input driver name
       Options: dbf, mysql, odbc, ogr, pg, sqlite
       Default: sqlite

   from_database=name
       Input database name
       Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db

   from_table=name
       Input table name (only, if 'select' is not used)

   to_driver=name
       Output driver name
       Options: dbf, mysql, odbc, ogr, pg, sqlite
       Default: sqlite

   to_database=name
       Output database name
       Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db

   to_table=name [required]
       Output table name

   where=sql_query
       WHERE conditions of SQL statement without 'where' keyword
       Example: income < 1000 and inhab >= 10000

   select=string
       Full  select  statement  (only,  if 'from_table' and 'where' is not
       used)
       E.g.: SELECT dedek FROM starobince WHERE obec = 'Frimburg'

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

AUTHOR

   Radim Blazek, ITC-irst, Trento, Italy

   Last changed: $Date: 2014-11-28 10:57:47 +0100 (Fri, 28 Nov 2014) $

SOURCE CODE

   Available at: db.copy source code (history)

   Main index | Database index | Topics index | Keywords index | Graphical
   index | Full index

    2003-2016 GRASS Development Team, GRASS GIS 7.2.0 Reference Manual

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