Semantics in Databases This book presents a coherent suvey on exciting developments in database semantics. The origins of the volume date back to a workshop held in Prague Czech Republic in 1995. The nine revised full papers and surveys presented were carefully reviewed for inclusion in the book. They address more traditional aspects like dealing with integrity constraints and conceptual modeling as well as new areas of databases; object orientation incomplete information database transformations and other issues are investigated by applying formal semantics e.g. the evolving algebra semantics