.TH v.db.dropcol 1grass "" "GRASS 6.4.2" "Grass User's Manual"
.SH NAME
\fI\fBv.db.dropcol\fR\fR  - Drops a column from the attribute table connected to a given vector map.
.SH KEYWORDS
vector, database, attribute table
.SH SYNOPSIS
\fBv.db.dropcol\fR
.br
\fBv.db.dropcol help\fR
.br
\fBv.db.dropcol map\fR=\fIname\fR  [\fBlayer\fR=\fIstring\fR]  \fBcolumn\fR=\fIstring\fR  [--\fBverbose\fR]  [--\fBquiet\fR] 
.SS Parameters:
.IP "\fBmap\fR=\fIname\fR" 4m
.br
Vector map for which to drop attribute column
.IP "\fBlayer\fR=\fIstring\fR" 4m
.br
Layer where to drop column
.br
Default: \fI1\fR
.IP "\fBcolumn\fR=\fIstring\fR" 4m
.br
Name of the column to drop
.PP
.SH DESCRIPTION
\fIv.db.dropcol\fR drops a column from the attribute table connected
to a given vector map. It automatically checks the connection for the specified
layer. \fIv.db.dropcol\fR omits to delete the 'cat' column which is
relevant to keep the connection between vector map and table.
.SH NOTES
v.db.dropcol is a front-end to \fIdb.execute\fR to allow easier usage.
The existing database connection(s) can be verified with \fIv.db.connect\fR.
.SH EXAMPLES
Dropping a column:
.br
\fC
.DS
.br
v.db.dropcol sentiero_brenta_points column=slope
.br
v.info -c sentiero_brenta_points
.br
.DE
\fR
.SH SEE ALSO
\fIdb.droptable\fR,
\fIdb.execute\fR,
\fIv.db.addcol\fR,
\fIv.db.addtable\fR,
\fIv.db.connect\fR,
\fIv.db.droptable\fR,
\fIv.db.select\fR,
\fIv.db.update\fR
.SH AUTHOR
Markus Neteler
.PP
\fILast changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $\fR
.PP
Full index
.PP
© 2003-2011 GRASS Development Team