The LuciadLightspeed Database Connectors component extends the LuciadLightspeed Oracle Locator functionality by adding support for decoding GeoRaster data stored in Oracle Spatial tables.
The Oracle Spatial GeoRaster book provides a complete description of the tables and data structures used for rasters. Briefly, Oracle rasters are stored in two related data structures, called SDO_GEORASTER and SDO_RASTER, respectively. The first structure contains raster metadata (format and storage parameters, georeferencing, spatial extent, etc) while the second contains the binary data, in a separate table. See http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14254/toc.htm for more information.