NAME
db.describe - Describes a table in detail.
KEYWORDS
database,
attribute table
SYNOPSIS
db.describe
db.describe --help
db.describe [-c] table=name [driver=name] [database=name] [--help] [--verbose] [--quiet] [--ui]
Flags:
- -c
- Print column names only instead of full column descriptions
- --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, odbc, ogr, pg, sqlite
- Default: sqlite
- database=name
- Name of database
- Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db
db.describe displays table information. If parameter
-c
is used only column names instead of full column descriptions is given.
If parameters for database connection are already set with
db.connect, they are taken as default values and
do not need to be spcified each time.
List column descriptions of table in SQLite database (note that this
is the default setting)
db.describe driver=sqlite table=hospitals \
database='$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db'
# or simply
db.describe myarchsites
db.describe -c table=hospitals database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf/' \
driver=dbf
ncols: 16
nrows: 160
Column 1: cat:INTEGER:11
Column 2: OBJECTID:INTEGER:11
Column 3: AREA:DOUBLE PRECISION:20
[...]
db.describe table=hospitals database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf/' \
driver=dbf
table:hospitals
description:
insert:yes
delete:yes
ncols:16
nrows:160
column:cat
description:
type:INTEGER
len:11
scale:0
precision:10
default:
nullok:yes
select:yes
update:yes
column:OBJECTID
description:
type:INTEGER
[...]
db.columns,
db.droptable,
db.execute,
db.login,
db.tables,
GRASS SQL interface
Radim Blazek, ITC-Irst, Trento, Italy
SOURCE CODE
Available at:
db.describe source code
(history)
Latest change: Thursday Jan 26 14:10:26 2023 in commit: cdd84c130cea04b204479e2efdc75c742efc4843
Main index |
Database index |
Topics index |
Keywords index |
Graphical index |
Full index
© 2003-2024
GRASS Development Team,
GRASS GIS 8.4.1dev Reference Manual