Query language

A query language is a data-processing Langage used to carry out requests on Databases or others Information systems. The grammar of a query language is thus adapted to the structure of the questioned data.

Examples

SQL for the relational Databases
MDX for multidimensional databases OLAP
DMX for the models of Dated Mining
Datalog for the deductive databases
XQuery for the data XML
SPARQL for the graphs RDF
OQL for the directed databases object

Random links: