This is the command db.dropcolumngrass that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
db.dropcolumn - Drops a column from selected attribute table.
KEYWORDS
database, attribute table
SYNOPSIS
db.dropcolumn
db.dropcolumn --help
db.dropcolumn [-f] table=name column=name [--help] [--verbose] [--quiet] [--ui]
Flags:
-f
Force removal (required for actual deletion of files)
--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
column=name [required]
Name of attribute column
DESCRIPTION
db.dropcolumn 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.dropcolumn is a front-end to db.execute to allow easier usage with a special workaround
for the SQLite driver to support column drop also for SQLite tables.
EXAMPLE
Dropping a column (North Carolina sample dataset):
# work on own copy
g.copy vect=roadsmajor,myroads
db.describe -c myroads
# only shows what would happen:
db.dropcolumn myroads column=SHAPE_LEN
# actually drops the column
db.dropcolumn -f myroads column=SHAPE_LEN
db.describe -c myroads
Use db.dropcolumngrass online using onworks.net services
