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

NAME

db.describe - Describes a table in detail.

KEYWORDS

database, attribute table

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: pg,dbf,ogr,odbc,mysql,sqlite
 
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/' \
 

driver=dbf
 
ncols:2
 
Column 1:cat:INTEGER:11
 
Column 2:label:CHARACTER:43
 
 
db.describe table=roads database='$GISDBASE/$LOCATION_NAME/PERMANENT/dbf/' \
 

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: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $
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GRASS 6.4.4