## GRASS GIS 7.8.2 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 GPLed), image processing and geographic information system (GIS).

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### Database commands:

db.columns | List all columns for a given table.
db.connect | Prints/sets general DB connection for current mapset.
db.copy | Copy a table.
db.createdb | Creates an empty database.
db.databases | Lists all databases for a given driver and location.
db.describe | Describes a table in detail.
db.drivers | Lists all database drivers.
db.dropcolumn | Drops a column from selected attribute table.
db.dropdb | Removes an existing database.
db.droptable | Drops an attribute table.
db.execute | Executes any SQL statement.
db.in.ogr | Imports attribute tables in various formats.
db.login | Sets user/password for DB driver/database.
db.out.ogr | Exports attribute tables into various formats.
db.select | Selects data from attribute table.
db.tables | Lists all tables for a given database.
db.test | Test database driver, database must exist and set by db.connect.
db.univar | Calculates univariate statistics on selected table column.

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© 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual