ОПИСАНИЕ

v.db.addcol adds one or more column(s) to the attribute table connected to a given vector map. It automatically checks the connection for the specified layer.

ПРИМЕЧАНИЯ

v.db.addcol is a front-end to db.execute to allow easier usage. The supported types of columns depend on the database backend. However, all backends should support VARCHAR, INT, DOUBLE/REAL and DATE. The default dbf backend supports only these types. The existing database connection(s) can be verified with v.db.connect.

ПРИМЕРЫ

Adding a single column:
v.db.addcol sentiero_brenta_points columns="slope double precision"
v.info -c sentiero_brenta_points

Adding two columns:

v.db.addcol sentiero_brenta_points columns="slope double precision,myname varchar(15)"
v.info -c sentiero_brenta_points

СМ. ТАКЖЕ

db.execute, v.db.addtable, v.db.connect, v.db.dropcol, v.db.droptable, v.db.select, v.db.update

АВТОР

Moritz Lennert (mlennert@club.worldonline.be)

Last changed: $Date: 2007-02-05 08:33:02 -0600 (Пн, 05 фев 2007) $

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