Skip to Main Content
Data Analysis for Database Design, 3rd Edition
book

Data Analysis for Database Design, 3rd Edition

by David Howe
May 2001
Intermediate to advanced content levelIntermediate to advanced
336 pages
14h 36m
English
Butterworth-Heinemann
Content preview from Data Analysis for Database Design, 3rd Edition

Relational algebra
 7DEOHDWDWLPHSURFHVVLQJ
The outcome of the data modelling techniques described in Parts 2 and 3 of this book is
a set of tables (i.e. relations) that provide a logical structure for the information of
interest to the enterprise. In order to use this information (for example, to process
borrower registration, loans, returns and reservations in the library example) some
means of manipulating the data is needed.
Relational algebra is a data manipulation language that provides a set of operators,
each of which processes a complete table, or tables, at a time. It is a higher-level
language than those programming languages that ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Data Quality Engineering in Financial Services

Data Quality Engineering in Financial Services

Brian Buzzelli

Publisher Resources

ISBN: 9780750650861