Literature
Introduction
Book Databázové systémy written by M. Krátký and R. Bača includes content of all four database courses of the bachelor study. Last update: 11.2.2015, 368 pages.
Book Encyclopedia of Database Systems edited by Ling Liu and M. Tamer Özsu, publisher Springer-Verlag, is available only from the university net. Encyclopedia is wide source of information and references usable for bachelor and diploma thesis (instead of references to Wikipedia).
Oracle Database PL/SQL Language Reference