DESCRIPTION
v.db.dropcolumn drops a column from the attribute table connected
to a given vector map. It automatically checks the connection for the specified
layer. v.db.dropcolumn omits to delete the 'cat' column which is
relevant to keep the connection between vector map and table.
NOTES
v.db.dropcolumn is a front-end to db.execute to allow easier usage.
The existing database connection(s) can be verified with v.db.connect.
EXAMPLES
Dropping a column:
g.copy vect=roadsmajor,myroads
v.info -c myroads
v.db.dropcolumn myroads column=SHAPE_LEN
v.info -c myroads
SEE ALSO
db.connect,
db.dropcolumn,
db.execute,
v.db.addcolumn,
v.db.connect,
v.db.droptable,
v.db.select,
v.db.update
GRASS SQL interface
AUTHOR
Markus Neteler
Last changed: $Date: 2011-11-08 13:24:20 -0800 (Tue, 08 Nov 2011) $