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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-0.4-app.zip file
  • Update the PATH environment variable to include geodb-0.7/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));

More Information

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

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