This book describes how InterSystems IRIS™ stores its data in multidimensional sparse arrays, known as globals.
"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.
"Temporary Globals and the IRISTEMP Database" describes how you can use temporary globals to assist with complex processing.