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db.columns(1grass) Grass User's Manual db.columns(1grass)

NAME

db.columns - List all columns for a given table.

KEYWORDS

database, attribute table

SYNOPSIS

db.columns
db.columns --help
db.columns table=name [driver=name] [database=name] [--help] [--verbose] [--quiet] [--ui]

Flags:

--help

Print usage summary
--verbose

Verbose module output
--quiet

Quiet module output
--ui

Force launching GUI dialog

Parameters:

table=name [required]

Name of attribute table
driver=name

Name of database driver
Options: dbf, mysql, odbc, ogr, pg, sqlite
Default: sqlite
database=name

Name of database
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db

DESCRIPTION

db.columns lists all columns for a give table. Connection to databases are supported through dbf, shp, odbc and pg drivers.

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.

EXAMPLES

List columns of a PostgreSQL attribute table


db.columns table=zipcodes_wake driver=pg database=grassdb

If the database parameters are already set, the columns can be listed directly 


db.columns table=zipcodes_wake

List columns from Shape file with DBF attribute table


db.columns table=zipcodes_wake driver=dbf database=/grassdata/nc_spm_08/PERMANENT/dbf/

List columns of table in SQLite database

Note that the SQLite backend is the default setting. 

db.columns driver=sqlite table=archsites database=’$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db’

SEE ALSO

db.connect, db.describe, db.drivers, db.droptable, db.execute, db.login, db.tables, GRASS SQL interface

GRASS SQL interface

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.columns source code (history)

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© 2003-2019 GRASS Development Team, GRASS GIS 7.6.0 Reference Manual

GRASS 7.6.0