Hi All,

I'm a bit new to Perl, so sorry if this question may be a bit easy. I'm used to using DBI and MySQL, but when it comes to other tricks in Perl...thats where I lack.

I'm looking foward to finding out the range between two numbers. These numbers are stored in variables so it may change at given times.

So lets say $a = 2, and $b = 8 then I want to retreive the range that would be: 2, 3, 4, 5, 6, 7 , 8 I would like this to be in some sort of array list so I can use these numbers inside a MySQL select statement.

I have this mysql table that includes numbers and a type of dog. :)
| numbers | type | ------------------- | 2 | ac | | 3 | dc | | 4 | ca | | 4 | md | | 5 | ae | | 6 | ce | | 7 | da | | 8 | ac | ___________________
I need some sort of way to display the values in column type by using the range of numbers. So if the range was 2-8, I would need to display all those values listed on the above table. Notice how it shows the number 4 twice , both having different values.

I'm not sure if I should just do a foreach statement and use the array range to find out all the values for each number. for ex.
my $type; my $sth = $dbh->prepare_cached(<<SQL); SELECT type from dogs where number = ? SQL foreach $number (@num_range) { $sth->execute($number); $sth_x->bind_columns(undef, \$type); while ($sth->fetch) { print "$num: $type"; } }
Is this the best way to do this, or is there a better way to do this in a MySQL syntax? And if it is the best way, then I wouldn't know how to calculate the number range :(!!!

Any suggestions is greatly appreciated.

Thank you.

In reply to Calculating the range between two numbers by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.