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I've worked a fair bit with Oracle Spatial and I've had some requests to transition to PostgreSQL Spatial.

Is there a common interface for SDO_Geometry and ST_Geometry? I'm working in Java with EclipseLink ORM.

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up vote 1 down vote accepted

GeoTools provides PostGIS and OracleSpatial datastores which will abstract away the differences.

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OGR supports both Oracle Spatial and PostGIS and there are Java bindings for OGR. Maybe OGR's ogr2ogr can help.

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