Introducing GeoDB

GeoDB is a spatial extension of H2, the Java SQL database. GeoDB utilizes the JTS library as its geometry engine and the Hatbox library for spatial indexing support.

Quickstart

• Download GeoDB

• Unzip the geodb-0.9-app.zip file

• Update the PATH environment variable to include geodb-0.9/bin

• Run the @geodb@ command:

  % geodb foo

• Initialize the spatial database:

  @h2> CREATE ALIAS InitGeoDB for "geodb.GeoDB.InitGeoDB";
  @h2> CALL InitGeoDB();

• Create a spatial table:

  @h2> CREATE TABLE spatial (id INT AUTO_INCREMENT PRIMARY KEY, geom BLOB);

• Create some spatial data:

  @h2> INSERT INTO spatial (geom) VALUES (ST_GeomFromText('POINT(-5 -5)', 4326));
  @h2> INSERT INTO spatial (geom) VALUES (ST_GeomFromText('POINT(0 0)', 4326));
  @h2> INSERT INTO spatial (geom) VALUES (ST_GeomFromText('POINT(5 5)', 4326));
  
  @h2> SELECT ST_AsText(ST_Buffer(geom, 10)) as buffer FROM spatial;

• Create a spatial index

  @h2> CALL CreateSpatialIndex(null, 'SPATIAL', 'GEOM', '4326');

• Perform a spatial query

  @h2> SELECT ST_AsText(geom) FROM spatial WHERE  id IN (SELECT CAST(HATBOX_JOIN_ID AS INT) FROM HATBOX_MBR_INTERSECTS_ENV('PUBLIC', 'SPATIAL', -2, 2, -2, 2));

License

GeoDB is licensed under the MIT license.

More Information

General discussion takes place on the geodb google group. If you have any questions or comments please post a message there.