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GRASS GIS 6.4.svn Reference Manual

Geographic Resources Analysis Support System, commonly referred to as GRASS, is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.

This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPL'ed), image processing and geographic information system (GIS).

Quick Introduction

database commands:
db.columns List all columns for a given table.
db.connect Prints/sets general DB connection for current mapset and exits.
db.copy Copy a table. Either 'from_table' (optionaly with 'where') can be used or 'select' option, but not 'from_table' and 'select' at the same time.
db.describe Describes a table in detail.
db.drivers List all database drivers.
db.dropcol Drops a column from selected attribute table
db.droptable Drops an attribute table
db.execute Executes any SQL statement. Imports attribute tables in various formats.
db.login Sets user/password for driver/database.
db.out.ogr Exports attribute tables into various formats. Selects data from table.
db.tables Lists all tables for a given database.
db.test Test database driver, database must exist and set by db.connect.

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