This article deals with the theoretical aspects of temporal databases. There is one of the definitions of temporal databases in the first part of the article which reflects the essence of temporal databases exactly. The existing approaches to temporal databases are also described in the article as well as three approaches to create such databases are highlighted. The article proposes a way to implement temporal extension for existing relational databases. Therefore new data types and new operations with them are proposed. All descriptions are given through the abstract data types. The final part of the article deals with the application of temporal database to store the social and economic information and creating of DB to keep the results of monitoring studies
Keywords
relation database, temporal database, adt, postgresql, operation