There isn't enough context here to give definitive answers to your questions.

As written, it's potentially an infinite loop. The loop will run while the condition $CustomerNumber = $Data{"CustomerNumber"} evaluates as true, which will be the case as long as the thing on the right-hand side of that equals sign evaluates as true (see What is true and false in Perl? for an explanation). Presumably, that should be == instead of = in that line (== is for testing, = is for assignment).

update I thought I'd put this in already, but I guess I hadn't : since it *appears* that the loop should only be executed once (you're not changing anything obviously related to the condition being tested), this should probably be an if rather than a while.

Within the loop, it looks like the code queries a database of some sort, and sets a few variables based on what it finds in the database. For any function you're having trouble understanding, read the output of 

perldoc -f [function I don't know]

[download]
for more information.

HTH!

Philosophy can be made out of anything. Or less -- Jerry A. Fodor

In reply to Re: Loop Question by arturo
in thread Loop Question by Anonymous Monk

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