Oracle Error Message
ORA-13456: GeoRaster cell data error: string
Reason for the Error
There was an error in the original GeoRaster cell data or in the cell data of the pyramids.
Solution
If the error is related to the original GeoRaster cell data, the GeoRaster object is invalid and has to be deleted or manually repaired. If the error is related to pyramids, delete the pyramids and regenerate them.