About This Book

This book describes how Caché stores its data in multidimensional sparse arrays, known as globals.

This book covers the following topics:

• Introduction provides an overview of the features and uses of globals.

• “Global Structure” describes how globals are stored on disk, how they are named and referenced, and their structure.

• “Using Multidimensional Storage (Globals)” describes how to work with globals programmatically.

• “SQL and Object Usage of Multidimensional Storage” describes how the object and SQL engines use globals to store data.

• “Managing Globals” describes tools for managing globals, primarily from the Management Portal.

For a detailed outline, see the Table of Contents.

For related programming guides, see:

• Caché Programming Orientation Guide

• Using Caché ObjectScript

• Using Caché Objects

• Using Caché Basic

For general information, see Using InterSystems Documentation.