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db.describe

Langue: en

Autres versions - même langue

Version: 372644 (fedora - 01/12/10)

Section: 1 (Commandes utilisateur)

NAME

db.describe - Describes a table in detail.

KEYWORDS

database, SQL

SYNOPSIS

db.describe
db.describe help
db.describe [-ct] table=name [driver=name] [database=name] [--verbose] [--quiet]

Flags:

-c

Print column names only instead of full column descriptions
-t

Print table structure
--verbose

Verbose module output
--quiet

Quiet module output

Parameters:

table=name

Table name
driver=name

Driver name
Options: ogr,odbc,pg,mysql,sqlite,mesql
Default: dbf
database=name

Database name
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/dbf/

DESCRIPTION

db.describe displays table information. If parameter -c is used only column names instead of full column descriptions is given.

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.

EXAMPLE


db.describe -c table=roads database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf/' rs

            driver=dbf
ncols:2
Column 1:cat:INTEGER:11
Column 2:label:CHARACTER:43

db.describe table=roads database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf/' rs

            driver=dbf
table:roads
description:
insert:yes
delete:yes
ncols:2

column:cat
description:
type:INTEGER
len:11
scale:0
precision:10
default:
nullok:yes
select:yes
update:yes
[...]

SEE ALSO

db.columns, db.droptable, db.execute, db.login, db.tables, GRASS SQL interface

AUTHOR

Radim Blazek, ITC-Irst, Trento, Italy

Last changed: $Date: 2007-04-07 18:18:51 +0200 (Sat, 07 Apr 2007) $

Full index

© 2003-2008 GRASS Development Team

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