1v.db.update(1)                Grass User's Manual               v.db.update(1)
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NAME

6       v.db.update   -  Allows  to  assign  a  new  value  to  a column in the
7       attribute table connected to a given map
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KEYWORDS

10       vector, database, attribute table
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SYNOPSIS

13       v.db.update
14       v.db.update help
15       v.db.update  map=string   [layer=integer]   column=string  value=string
16       [where=string]
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18   Parameters:
19       map=string
20           Vector map for which to edit attribute table
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22       layer=integer
23           Layer where to add column Default: 1
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25       column=string
26           Column to update
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28       value=string
29           New  value  to  assign  to the column (varchar values have to be in
30           single quotes, ex: 'grass')
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32       where=string
33           Condition for update (everything after the 'where'  sql  statement;
34           ex: cat=1 or col1/col2>1)
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DESCRIPTION

37       v.db.update  allows  to assign a new value to a column in the attribute
38       table connected to a given map.
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NOTES

41       v.db.update is just a front-end to db.execute to  allow  easier  usage.
42       For complex SQL UPDATE statements, db.execute should be used.
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SEE ALSO

45       db.execute,  v.db.addcol,  v.db.addtable, v.db.connect, v.db.droptable,
46       v.db.select
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AUTHOR

49       Moritz Lennert (mlennert@club.worldonline.be)
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51       Last changed: $Date: 2007/03/08 13:51:30 $
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53       Full index
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57GRASS 6.2.2                                                     v.db.update(1)