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: 2007-12-30 03:48:58 -0800 (Sun, 30 Dec 2007) $
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