ENGLISH

View Updating and Relational Theory: Solving the View Update Problem

By C.J. Date

Book information

Publisher
O'Reilly Media
Year
2012
ISBN
978-1-4493-5784-9
Language
english
Format
PDF
Filesize
19 MB (20039326 bytes)
Pages
260\262
Topic
Computers Databases
Time added
2016-06-29 18:00:00
Информатика и вычислительная техника;Базы данных

Description

Views are virtual tables. That means they should be updatable, just as "real" or base tables are. In fact, view updatability isn't just desirable, it's crucial, for practical reasons as well as theoretical ones. But view updating has always been a controversial topic. Ever since the relational model first appeared, there has been widespread skepticism as to whether (in general) view updating is even possible.

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