Hi,

I'm very new to database "stuff" so this is the best place I know to ask this (boy does that sound negative! ;-)).
Right now I'm figuring out the basics with mySQL but I will probably have to use a non-open source DB when this project takes off ... I just hope that doesn't mean I'll have to start learning all over again.

Here's the deal:
I'm working with 2 databases. They are seperated for security reasons.
One is on a private intranet database. It's constantly changing.
The other is online and part of a website where people can see what's happening.

The problem is that I need to synchronize the online database every x minutes and I have no idea how to do this :-(

Are there any tricks (Perl or SQL) to get the changed parts of a database so I don't need to copy the whole thing (which would be impossible)?
Should I just check EVERY item in it with a hash of the data that was in it last time?

Any links to good database information sites are appreciated because I'm just getting into it and I like to learn as much as possible, as fast as possible ;-)

thanks!
CBAS

In reply to Perl/mySQL question by $CBAS

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.