db.columns
List all columns for a given table.
db.columns table=name [driver=name] [database=name] [--verbose] [--quiet] [--qq] [--ui]
Example:
db.columns table=name
grass.script.run_command("db.columns", table, driver="sqlite", database="$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db", verbose=False, quiet=False, superquiet=False)
Example:
gs.run_command("db.columns", table="name")
Parameters
table=name [required]
Name of attribute table
driver=name
Name of database driver
Allowed values: dbf, ogr, sqlite
Default: sqlite
database=name
Name of database
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--qq
Very quiet module output
--ui
Force launching GUI dialog
table : str, required
Name of attribute table
Used as: input, dbtable, name
driver : str, optional
Name of database driver
Used as: input, dbdriver, name
Allowed values: dbf, ogr, sqlite
Default: sqlite
database : str, optional
Name of database
Used as: input, dbname, name
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db
verbose: bool, optional
Verbose module output
Default: False
quiet: bool, optional
Quiet module output
Default: False
superquiet: bool, optional
Very quiet module output
Default: False
DESCRIPTION
db.columns lists all columns for a give table. Connection to databases are supported through dbf, shp, odbc and pg drivers.
NOTE
If parameters for database connection are already set with db.connect, they are taken as default values and do not need to be specified each time.
EXAMPLES
List columns of a PostgreSQL attribute table
db.columns table=zipcodes_wake driver=pg database=grassdb
If the database parameters are already set, the columns can be listed directly
db.columns table=zipcodes_wake
List columns from Shape file with DBF attribute table
db.columns table=zipcodes_wake driver=dbf database=/grassdata/nc_spm_08/PERMANENT/dbf/
List columns of table in SQLite database
Note that the SQLite backend is the default setting.
db.columns driver=sqlite table=archsites database='$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
AUTHOR
Radim Blazek, ITC-Irst, Trento, Italy
SOURCE CODE
Available at: db.columns source code
(history)
Latest change: Saturday Mar 01 15:13:00 2025 in commit 45f0c94