Question

What difference between spatial query language and temporal query language?

Answer 1

Answer:

The spatial query language has been designed as a min- imal extension to the interrogative part of SQL and distinguishes from previously designed SQL extensions by

(1) the preservation of SQL concepts

, (2) the high- level treatment of spatial objects,

(3) the incorporation of spatial operations and relationships.

                                        where as

A temporal query language is a database query language that offers some form of built-in support for the querying and modification of time-referenced data, as well as enabling the specification of assertions and constraints on such data.