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Saturday, February 11, 2006

Did you know that NULL is a "Boolean value"? Hmmm...

PL/SQL User's Guide and Reference (9.2 and 10.2): "NULL Statement"

"The NULL statement and Boolean value NULL are unrelated."

[Full Article]

2 comments:

  1. >> But why is NULL specifically
    >> identified as Boolean?

    I presume because something either IS NULL or IS NOT NULL.

    Although the Daily WTF did once feature an application which defined a method called isVeryNull() :
    http://thedailywtf.com/forums/thread/71818.aspx

    Cheers, APC

    ReplyDelete
  2. I wonder what it would mean if isVeryNull() returned NULL? hmmm

    ReplyDelete

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