Hi, folks:

it might not be a Perl specific question, but I'd rather find a Perl solution. :-) I have over 25,000K unique strings(5-50 chars in length) and I need to generate an 12-digit unique/random hex-decimal ID for each record and import them into MySQL. new records having a different field value might be inputed later. So far, I can use MySQL's auto_increment column to make an absolutely unique seed and adjust them to 12-digit. But it looks not flexible for new input in the future.. Is there any method(hashing,MD5 or whatever) that I can use with Perl to generate 12-digit unique/random keys against over 25,000K records.

many thanks

lihao


In reply to Question: Generate unique/random 12-digit keys for 25,000K records, howto?? by lihao

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.