Research on management method of raster data based on Oracle 10g spatial

摘要

This paper investigated raster data''s storage and management mechanisms of Oracle 10g spatial, including GeoRester data model, physical storage structure, data block and pyramid strategy. On this basis, the paper demonstrated a typical example of storing and managing raster data. Through a large number of experiments, the paper pointed out that the Oracle''s raster data loading tool cannot upload large capacity raster image. Aiming at the disadvantage in terms of data capacity, the paper presented a simple yet effective solution, which adopts block processing way, is consistent with “divide and conquer” idea, can improve data processing and network transmission speed.