db.describe - Describes a table in detail.
Contents
Description
db.describe displays table information. If parameter -c is used only column names instead of full column
descriptions is given.
Examples
ListcolumndescriptionsoftableinSQLitedatabase(notethatthisisthedefaultsetting)
db.describe driver=sqlite table=hospitals \
database=’$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db’
# or simply
db.describe myarchsites
DBFexample
db.describe -c table=hospitals database=’$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
[...]
Keywords
database, attribute table
Name
db.describe - Describes a table in detail.
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.
See Also
db.columns,db.droptable,db.execute,db.login,db.tables,GRASSSQLinterface
Source Code
Available at: db.describe source code (history)
Accessed: Friday Apr 04 01:18:43 2025
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© 2003-2025 GRASS Development Team, GRASS GIS 8.4.1 Reference Manual
GRASS 8.4.1 db.describe(1grass)
Synopsis
db.describedb.describe--helpdb.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,mysql,odbc,ogr,pg,sqlite
Default: sqlitedatabase=name
Name of database
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db