---
name: "v.db.dropcol"
section: "1grass"
platform: "linux"
package: "grass-doc"
version: "6.4.4-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/v.db.dropcol"
---

# v.db.dropcol(1grass)

Drops a column from the attribute table connected to a given vector map.

## NAME

**v.db.dropcol**  - Drops a column from the attribute table connected to a given vector map.

## KEYWORDS

vector, database, attribute table

## SYNOPSIS

**v.db.dropcol**\
 **v.db.dropcol help**\
 **v.db.dropcol map**=*name*  \[**layer**=*string*\]  **column**=*string*  \[--**verbose**\]  \[--**quiet**\]

### Parameters:

- **map**=*name*

  Vector map for which to drop attribute column

- **layer**=*string*

  Layer where to drop column\
   Default: *1*

- **column**=*string*

  Name of the column to drop

## DESCRIPTION

*v.db.dropcol* drops a column from the attribute table connected to a given vector map. It automatically checks the connection for the specified layer. *v.db.dropcol* omits to delete the 'cat' column which is relevant to keep the connection between vector map and table.

## NOTES

v.db.dropcol 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:\
\
 `v.db.dropcol sentiero_brenta_points column=slope`\
 `v.info -c sentiero_brenta_points`\

## SEE ALSO

*db.droptable,* *db.execute,* *v.db.addcol,* *v.db.addtable,* *v.db.connect,* *v.db.droptable,* *v.db.select,* *v.db.update*

## AUTHOR

Markus Neteler

*Last changed: $Date: 2013-09-22 10:26:32 +0200 (Sun, 22 Sep 2013) $*

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