β Scribed by M.H. Wong; K.S. Leung
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
´´à n this paper we present a definition of a domain relational calculus for fuzzy relational databases using the GEFRED model as a starting point. It is possible to define an equivalent fuzzy tuple relational calculus and consequently we achieve the two query language levels that Codd designed for
Multimedia databases have emerged to cope up with the huge amount of multimedia data, which comes up as a result of technological advancement. However, more intelligent techniques are required to satisfy different query requirements of multimedia users. This study extends the query capability of a m
The experiment presented constitutes an initial attempt to create a model of the end user of a database query language. The central issue is the cognitive behaviour reflected when a user faces a query condition which is similar to, but more complex than those conditions he has been taught to deal wi
More and more relational database systems for microcomputers are providing visual interfaces, such as query by example (QBE). At the same time, experimental studies are providing more support for the theory that the end users can perform better with the entity relationship (ER) model than with the r