Chapter 2: Hash Object Terminology and Concepts
What Is a SAS Hash Object?
Defining Terms Associated with Hash Objects
Writing Code That Works with Hash Objects
Understanding How SAS Stores Hash Objects in Memory
Understanding How Long Hash Objects Persist
Specifying the Contents of Hash Objects
Initializing Variables in a DATA Step That Contains a Hash Object
Illustrating How the Program Data Vector Connects DATA Step Variables and Hash Object Items
This chapter defines the main terms and explains the general concepts associated with hash objects. These terms and concepts are applied throughout this book and in SAS documentation.
Hash object programming in the DATA step uses elements associated with object-oriented programming. This aspect ...