用“relational algebra”造句大全，relational algebra造句

This theoretical model allows, for example, that relational algebra operations to be replaced by more efficient equivalent operations whereas not interfere with the result.

Similarly, based on the medium set theory MS, the medium relational algebra can extend the capability of relational algebra.

Finally, bitemporal relation is defined as the set of the temporal mapping tuple, and the bitemporal relational algebra operations are described formally.