Learning MySQL

Exercises

1. What are the strengths of Perl?

2. What is the difference between an array and a hash?

3. What does the following Perl script do?

   #!/usr/bin/perl
   use strict;
   
   my $Answer;
   while(@ARGV)
   {
    $Answer+=shift(@ARGV);
   }
   print "Answer: $Answer\n"