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   v.db.addtable creates and adds a new attribute table to a given vector
   map. It links the table to the specified layer of the vector map. If
   the vector map is not yet linked to any table, new a database link is
   established based on the MAPSET database settings (see db.connect).

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   v.db.addtable 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 and DATE. The default dbf
   backend supports only these types. The existing database connection(s)
   can be verified with v.db.connect.

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   Adding a new attribute table with a single column to default layer 1:

v.db.addtable sentiero_brenta_points columns="slope double"
v.db.connect -p sentiero_brenta_points
v.info -c sentiero_brenta_points

   Adding a new attribute table with two columns to layer 2:

v.db.addtable sentiero_brenta_points columns="slope double,myname varchar(15)"
layer=2
v.db.connect -p sentiero_brenta_points
v.info -c sentiero_brenta_points

СÐ. ТÐÐÐÐ

   [1]db.connect, [2]db.execute, [3]v.db.addcol, [4]v.db.connect,
   [5]v.db.dropcol, [6]v.db.droptable, [7]v.db.select, [8]v.db.update
   [9]GRASS SQL interface

ÐÐТÐÐ

   Markus Neteler

   Last changed: $Date: 2007-05-07 10:59:55 -0500 (Ðн, 07 май 2007) $

ÐвÑÐ¾Ñ Ð¿ÐµÑевода

References

   1. file://localhost/root/tmp/2/fin/db.connect.html
   2. file://localhost/root/tmp/2/fin/db.execute.html
   3. file://localhost/root/tmp/2/fin/v.db.addcol.html
   4. file://localhost/root/tmp/2/fin/v.db.connect.html
   5. file://localhost/root/tmp/2/fin/v.db.dropcol.html
   6. file://localhost/root/tmp/2/fin/v.db.droptable.html
   7. file://localhost/root/tmp/2/fin/v.db.select.html
   8. file://localhost/root/tmp/2/fin/v.db.update.html
   9. file://localhost/root/tmp/2/fin/sql.html