Standard, Relational and Network Data Base Languages - Hardcover

Yannakoudakis, E. J.; Cheng, C. P.

Hardcover

ISBN 10: 3540195378 ISBN 13: 9783540195375

Verlag: Springer-Verlag Berlin and Heidelberg GmbH & Co. K, 1988

Über diesen Titel

Reseña del editor

For any type of software to become standard, whether a third genera­ tion language or an integrated project support environment (IPSE), it must undergo a series of modifications and updates which are a direct result of theoretical and empirical knowledge gained in the process. The database approach to the design of general purpose infonn­ ation systems has undergone a series of revisions during the last twenty years which have established it as a winner in many different spheres of infonnation processing, including expert systems and real­ time control. It is now widely recognised by academics and practitioners alike, that the use of a database management system (DBMS) as the under­ lying software tool for the development of infonnation/knowledge based systems can lead to environments which are: (a) flexible, (b) efficient, (c) user-friendly, (d) free from duplication, and (e) fully controllable. The concept of a DBMS is now mature and has produced the software necessary to design the actual database holding the data. The database languages proposed recently by the International Organisa­ tion for Standardisation (ISO) are thorough enough for the design of the necessary software compilers (i.e programs which translate the high level commands into machine language for fast execution by the computer hardware). The ISO languages adopt two basic models of data and therefore two different sets of commands: (a) the relational, implemented via the relational database language (RDL), and (b) the network, imple­ mented via the network database language (NDL).

Reseña del editor

This book is in three parts. The first part describes the database management system as it should be and discusses the various facilities it should offer the database administra- tor, the programmer and the general user. The second part describes SQL, including the schema and sub-schema defini- tion languages, the module language, the module language and themanipulation language while a third part is devoted to NDL including the commands to create the schema and the views, the module and the data manipulation language.

Details zur Ausgabe

• Verlag: Springer-Verlag Berlin and Heidelberg GmbH & Co. K
• Erscheinungsdatum: 1988
• ISBN 10: 3540195378
• ISBN 13: 9783540195375
• Einband: Tapa dura
• Sprache: Englisch
• Anzahl der Seiten: 157