general(1grass) [debian man page]

general(1grass) 						Grass User's Manual						   general(1grass)

GRASS GIS 6.4.2 Reference Manual
       Geographic Resources Analysis Support System, commonly referred to as GRASS, is a <a href="http://en.wikipedia.org/wiki/Geographic_informa-
       tion_system">Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps  produc-
       tion, 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).  Go back to help overview
       general commands:
	    | g.access	   | Controls access to the current mapset for other users on the system.
	    | g.ask   | Prompts the user for the names of GRASS data base files.
	    |  g.copy	| Copies available data files in the user's current mapset search path and location to the appropriate element directories
       under the user's current mapset.
	    | g.dirseps    | Internal GRASS utility for converting directory separator characters.
	    | g.extension  | Tool to maintain GRASS extensions in local GRASS installation.
	    | g.filename   | Prints GRASS data base file names.
	    | g.findetc    | Searches for GRASS support files.
	    | g.findfile   | Searches for GRASS data base files and sets variables for the shell.
	    | g.gisenv	   | Outputs and modifies the user's current GRASS variable settings.
	    | g.gui   | Launches a GRASS graphical user interface (GUI) session.
	    | g.list  | Lists available GRASS data base files of the user-specified data type.
	    | g.manual	   | Display the HTML man pages of GRASS
	    | g.mapset	   | Changes current mapset.
	    | g.mapsets    | Modifies the user's current mapset search path.
	    | g.message    | Prints a message, warning, progress info, or fatal error in the GRASS way.
	    | g.mkfontcap  | Generates the font configuration file by scanning various directories for fonts
	    | g.mlist	   | Lists available GRASS data base files of the user-specified data type optionally using the search pattern.
	    | g.mremove    | Removes data base element files from the user's current mapset.
	    | g.parser	   | Provides automated parser, GUI, and help support for GRASS scipts.
	    | g.pnmcomp    | Overlays multiple PPM image files
	    | g.proj  | Converts co-ordinate system descriptions (i.e. projection information) between various formats (including GRASS format).
	    | g.region	   | Manages the boundary definitions for the geographic region.
	    | g.remove	   | Removes data base element files from the user's current mapset.
	    | g.rename	   | Renames data base element files in the user's current mapset.
	    | g.setproj    | Interactively reset the location's projection settings.
	    | g.tempfile   | Creates a temporary file and prints the file name.
	    | g.transform  | Computes a coordinate transformation based on the control points.
	    | g.version    | Displays version and copyright information.

       Full Index
       (C) 2003-2011 GRASS Development Team

GRASS 6.4.2															   general(1grass)

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grass-mesql(1grass)						Grass User's Manual					       grass-mesql(1grass)

NAME

       grass-mesql - MySQL embedded driver

       MySQL  embedded	driver	MySQL  embedded  driver  in GRASS MySQL database driver in GRASS enables GRASS to store vector attributes in MySQL
       embedded database without necessity to run MySQL server.

Driver and database name
       GRASS modules require 2 parameters to connect to a database.  Those parameters are 'driver' and 'database'. For MySQL embedded  driver  the
       parameter  'driver'  should  be	set  to value 'mesql'.	The parameter 'database' is a full path to the directory where database tables are
       stored. The best place is a directory in the mapset. The directory must be created before use of the driver. In the name of database it	is
       possible to use 3 variables:

		      $GISDBASE - path to current GISBASE

		      $LOCATION_NAME - name of current location

		      $MAPSET - name of current mapset

       Examples of connection parameters:
	 db.connect driver=mesql database='$GISDBASE/$LOCATION_NAME/$MAPSET/mysql'
	 db.connect driver=mesql database=/home/user1/db

Data types, indexes
       For more informations about supported data types and indexes see the documentation for MySQL (mysql) driver

Database type
       Because	database  closing  was	found  very  slow if InnoDB was used, the InnoDB storage is disabled by default (hardcoded '--skip-innodb'
       server option).

Note
       The embedded server is started with hardcoded '--bootstrap' option to avoid warning about missing mysql.time_zone_leap_second  table.  This
       can be fixed in future.

SEE ALSO

	db.connect, SQL support in GRASS GIS

Credits
       Development of the driver was sponsored by Faunalia (Italy) as part of a project for ATAC.

AUTHOR

       Radim Blazek

       Last changed: $Date: 2011-02-07 18:59:50 +0100 (Mon, 07 Feb 2011) $
       Help Index

GRASS 6.4.2														       grass-mesql(1grass)

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