Posted by shror on 01/10/08 10:05

Hi every body,

I have a really serious question which is what is the difference
between $message & $$message, I know the uses of $message which is the
assigning of a variables and for the forms POST & GET, but what is the
uses of $$mesage

also I have another Database question, Its a question I've been asked
in an interview but am just a beginner in DataBase, the question was
that:
Company need to create a DB once and do no more edits in the future on
the DB, the DB contains Category name, Sub-category, sub-sub-category

so this means three level tree how to create a DB using this hierarchy
and in the future if the sub-sub got another sub how could this be
done without the need of a DB designer??


Thanks so much for all help in advance

shror

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