db.copygrass - Online in the Cloud

PROGRAM:

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: mysql, odbc, sqlite, pg, ogr, dbf
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: mysql, odbc, sqlite, pg, ogr, dbf
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

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