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Mark Leighton Fisher (4252)
Mark Leighton Fisher
(email not shown publicly)
http://mark-fisher.home.mindspring.com/
I am a Systems Engineer at Regenstrief Institute [regenstrief.org]. I also own Fisher's Creek Consulting [comcast.net].
(email not shown publicly)
http://mark-fisher.home.mindspring.com/
I am a Systems Engineer at Regenstrief Institute [regenstrief.org]. I also own Fisher's Creek Consulting [comcast.net].
Journal of Mark Leighton Fisher (4252)
Friday June 08, 2007
11:50 AM
Perl's undef: NULL for the Language
Sic Semper NULL talks about how allowing NULLs in a database schema can simplify the schema design. An advantage of using an interpreted language like Perl is that you can have support for undefined values and we Perl users do, in the form of undef and defined().
Just as in a database, sometimes you just don't know what are the values of your data. undef is perfect for that. 'Nuff said.
I pour myself a cup of strong coffee. :-)
-- Jarkko Hietaniemi
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