Provided by: grass-doc_7.8.2-1build3_all bug

NAME

       v.in.db  - Creates new vector (points) map from database table containing coordinates.

KEYWORDS

       vector, import, database, points

SYNOPSIS

       v.in.db
       v.in.db --help
       v.in.db   [-t]   table=name   [driver=name]    [database=name]   x=name  y=name   [z=name]
       [key=name]    [where=sql_query]    output=name    [--overwrite]    [--help]    [--verbose]
       [--quiet]  [--ui]

   Flags:
       -t
           Use imported table as attribute table for new map

       --overwrite
           Allow output files to overwrite existing files

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       table=name [required]
           Input table name

       driver=name
           Name of database driver
           Options: dbf, mysql, odbc, ogr, pg, sqlite
           Default: sqlite

       database=name
           Name of database
           Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db

       x=name [required]
           Name of column containing x coordinate

       y=name [required]
           Name of column containing y coordinate

       z=name
           Name of column containing z coordinate

       key=name
           Name of column containing category number
           Must refer to an integer column

       where=sql_query
           WHERE conditions of SQL statement without ’where’ keyword
           Example: income < 1000 and population >= 10000

       output=name [required]
           Name for output vector map

DESCRIPTION

       v.in.db creates a new vector point map from database table or file containing coordinates.

NOTES

       If  GRASS  comes  with OGR support than v.in.db allows importing data from different input
       files, eg. CSV or MS Excel (assuming that GDAL/OGR library is compiled with this support).

       v.in.db creates key column "cat" automatically when key option is  not  given.  Note  that
       this operation is possible to perform only when -t flag is not given. Currently, automated
       creation of key column is supported only when default DB driver for output vector  map  is
       SQLite  driver  otherwise  key  option must be specified by the user. Default DB driver is
       defined by db.connect.

EXAMPLES

   Creating a map from PostgreSQL table
       v.in.db driver=pg database="host=myserver.itc.it,dbname=mydb" \
               table=pat_stazioni x=east y=north z=quota key=id output=pat_stazioni

       If an ID column is not present in the PostgreSQL table, a new column should be added.  See
       PostgreSQL DB driver page for details.

   Creating a map from PostGIS
       To extract coordinate values from PostGIS, functions have to be used:
       v.in.db driver=pg database="host=myserver.itc.it,dbname=mydb" \
               table=station x="x(geom)" y="y(geom)" z="z(geom)" key=id out=meteostations

       If  an ID column is not present in the PostgreSQL table, a new column should be added. See
       PostgreSQL DB driver page for details.

       Alternatively a vector point map can be imported from PostGIS database using v.in.ogr.

   Creating a map from Open Document spreadsheet (ODS) file
       A new vector point map is created from given sheet in ODS file. The database option points
       to  the ODS file. Option table is the name of selected spreadsheet list, the key option is
       the identifier column:
       # preview table structure with OGR tool (table name is "Layer name" here):
       ogrinfo -al -so meteodata.ods
       # import sheet from ODS into map
       v.in.db key=ID table=mysheet x=long y=lat z=height output=meteodata \
                driver=ogr database=meteodata.ods

   Creating a map from MS Excel file
       A new vector point map is created from given sheet in MS Excel file. The  database  option
       points  to  the  file in MS Excel format. Option table is name of the selected spreadsheet
       "List1":
       v.in.db table=List1 x=long y=lat z=height output=meteodata \
                driver=ogr database=meteodata.xls
       Note that in this example the key option is omitted. In this case v.in.db tries to add key
       column automatically. This requires SQLite to be a default DB driver.

   Creating a map from DBF table
       A  new  3D  point vector map is created from DBF table. Column ’idcol’ contains unique row
       IDs. The database option is the directory where the DBF file is stored.
       v.in.db driver=dbf database=/home/user/tables/ table=pointsfile x=x y=y z=z \
               key=idcol out=dtmpoints
       To check result:
       v.info dtmpoints
       v.info -c dtmpoints

       If DB driver for output vector map is different from SQLite driver and  an  ID  column  is
       missing  in  the  DBF  file,  it  has  to  be  added  beforehand,  e.g.  with  OpenOffice.
       Alternatively, import the table with db.in.ogr into GRASS and then with v.in.db  from  the
       imported table (db.in.ogr optionally adds an unique ID column).

   Creating a point map from DBF table for selected records only
       The  user  can  import  only selected vector points from a table using the where parameter
       (see above for general DBF handling):
       v.in.db driver=dbf  database=/home/user/tables/ table=pointsfile x=x y=y z=z \
               key=idcol out=dtmpoints where="x NOT NULL and z > 100"

   Creating a map from SQLite table
       A new vector point map is created from table  in  SQLite  database  file.  Column  ’idcol’
       contains unique row IDs. The database option is the the SQLite database file.
       v.in.db driver=sqlite database=/home/user/tables/mysqlite.db table=pointsfile x=x y=y z=z \
               key=idcol out=dtmpoints

SEE ALSO

        db.execute, db.in.ogr, v.info, v.in.geonames, v.in.ogr, v.to.db

       SQL support in GRASS GIS

AUTHORS

       Radim Blazek
       Various  updates  for GRASS 7 by Martin Landa, Czech Technical University in Prague, Czech
       Republic

SOURCE CODE

       Available at: v.in.db source code (history)

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