v.db.addcol
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.
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.
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
db.execute, v.db.addtable, v.db.connect, v.db.droptable, v.db.select, v.db.update
Moritz Lennert (mlennert AT club DOT worldonline DOT be)
Last changed: $Date: 2005/11/15 08:47:49 $
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