The OP seems a bit unwilling to listen, but if you truncate the hash, you meet his spec.
use Digest::MD5 qw/ md5_hex /;
my $digest=md5_hex("http://www.berghold.net");
printf "%d\n", hex(substr($digest, -4)) % 10_000;
So the one-liner he's looking for would be hex(substr(md5_hex($someurl), -4)) % 10_000. I'm betting that is somewhat collision resistant. The OP still should consider enlarging his int2 column to int4 or int8 or even char(4)
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|