Some requeriments of the physical data model for SDBMs are:
- Implementation of a data model in an integrated way with the query processing
- Not
only implementing atomic operations using geometric algorithms, but
also considering the use of predicates for query processing with
spatial access methods
- The representation of spatial data types must be compatible with the perspective of DBMs and spatial data model
DBMS:
- Like attributes
- Variable size
- Permanent storage in secundary memory
- Effient load in main memory
| Spatial Model:
- Efficient geometric proceesing
- Complex data structures
- Associated with data in a programming language
|
|
Última modificación: Thursday, 24 de November de 2005, 06:46