Research And Implementation Of Index Mechanisms In Spatio-temporal Analysis Databases STADBS

Spatio-temporal databases manage spatial objects that change positions and/or extents over time, Spatio-temporal index method is one of the key technologies in Spatio-temporal Database Management System. In order to improve the efficiency of spatio-temporal data access, spatio-temporal index mechanisms should considers both characteristics of spatial and temporal and combines both access methods of spatial and temporal. In the first place, the paper briefly discusses issues related to the main index mechanisms in spatial and temporal, studies the access methods of spatio-temporal databases which has been presented. Furthermore, the paper explains the storage mechanisms in STADBS(Spatio-temporal Analysis Database System) and presents a HR-tree index structure based on main memory to realize the index mechanism of STADBS, it's main technologies were discussed in detail. Lastly, a visual demo of HR-tree based on main memory was introduced in this paper.