NULL
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NULL

The Absence of Value in Computing

About the Book

A meditative analysis on all of the uses and misuses of NULL values in computing.

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    • Software Engineering
    • Reference
    • Computer Science
    • Databases
    • Computing History
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About the Author

Daniel Hargett
Daniel Hargett

Daniel Hargett DSCE DCME, has been using and programming computers since his father gave him his first 386 in 1995. Since then, he has built a beautiful family and successful career in Digital Signage. His passions include Learning, Teaching, Audio/Video tech, Computer Networking, and Computer Hardware/Software.

Table of Contents

    • Introduction
      • NULL Around the World!
    • Chapter X - A Brief History of NULL
      • NULL Before Computing
      • The Inventor of NULL
      • Early Programming Languages
      • The Development of NULL Values
      • The Introduction of C
      • NULL Usage in Databases During the 1970’s
    • Chapter X - Different Kinds of NULL
    • Chapter X - Uses and Misuses of NULL
      • Uses of NULL in Computing
      • Misuses of NULL
    • Chapter X - The Use of NULL in Computer Programming
      • Programming vs. Query vs. Scripting
      • Style Choices
    • Chapter X - NULL in Programming Languages
      • LISP
      • FORTRAN
      • QBASIC
    • Chapter X - NULL in Scripting Languages
      • NULL in Python
      • NULL in PowerShell
    • Chapter X - NULL in Query Languages
      • NULL in SQL
      • NULL in XQuery

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