Principles of Data Management

Get full access to Principles of Data Management and 60K+ other titles, with a free 10-day trial of O'Reilly.

There are also live events, courses curated by job role, and more.

Start your free trial

Network databases

Like its predecessor, the hierarchical model of data, the network model of

FIGURE B.5 Hierarchical database occurrences

FIGURE B.6 Hierarchical database records in sequence

data formed the basis for a number of pre-relational database management systems. The model was based on the recommendations of the Conference on Data Systems Languages (CODASYL) Data Base Task Group, published in 1971. The most prominent product based on the network model was the Integrated Database Management System (IDMS) from Cullinet Software, Inc ...

Get Principles of Data Management now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial

Don’t leave empty-handed

Get Mark Richards’s Software Architecture Patterns ebook to better understand how to design components—and how they should interact.

It’s yours, free.

Get it now

Check it out now on O’Reilly

Dive in for free with a 10-day trial of the O’Reilly learning platform—then explore all the other resources our members count on to build skills and solve problems every day.

Start your free trial Become a member now