Spatial Developer's Guide Reference Information SDO_TUNE Package (Tuning) 33 SDO_TUNE Package (Tuning) The MDSYS.SDO_TUNE package contains subprograms for spatial tuning. SDO_TUNE.AVERAGE_MBR SDO_TUNE.ESTIMATE_RTREE_INDEX_SIZE SDO_TUNE.EXTENT_OF SDO_TUNE.MIX_INFO Parent topic: Reference Information