Database Systems, Quo Vadis?

by · Oct 25, 2018 · 29 views ·

Pražský informatický seminář

Databases have been around for more than 50 years. Codd’s relational data model from 1970 decoupled the form of data from the physical storage of that data and introduced two important formal query languages: relational calculus and relational algebra. At that time, the research was focused on development of non-procedural query languages whose expressive power is closer to computational completeness.