NAME¶

db.dropcol - Drops a column from selected attribute table

KEYWORDS¶

database, attribute table

SYNOPSIS¶

db.dropcol db.dropcol help db.dropcol [-f] table=name column=string [-- verbose] [--quiet]

Flags:¶

-f

 

Force removal (required for actual deletion of files)

--verbose

 

Verbose module output

--quiet

 

Quiet module output

Parameters:¶

table=name

 

Table from which to drop attribute column

column=string

 

Name of the column

DESCRIPTION¶

db.dropcol drops a column from an attribute table. If the -f force flag is not given then nothing is removed, instead a preview of the action to be taken is printed.

NOTES¶

db.dropcol is a front-end to db.execute to allow easier usage with a special workaround for the SQLite driver to support column drop.

EXAMPLES¶

Dropping a column (Spearfish): # work on own copy g.copy vect=roads,myroads db.describe -c myroads # only shows what would happen: db.dropcol myroads column=label # actually drops the column db.dropcol -f myroads column=label db.describe -c myroads

SEE ALSO¶

db.droptable, db.execute, v.db.dropcol

AUTHOR¶

Markus Neteler Last changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $ Full index © 2003-2014 GRASS Development Team