Try this -
dbmopen(%DATA, "filename.db", 0600) || die "Darn!";
The .dir and .pag is the ndbm database extension default on the Windows perl platform. Because when you try to open the file "filename" without the ".db" extension, the system will try to find matching "filename.dir" and "filename.pag" by default, when not found, the system will try to create one for you. Thus you need to be more specific and give "filename.db" instead.

Another suggestion: use tie() instead of dbmopen, and also checkout the DB_File (for Berkley DB), DBI/DBD modules on CPAN, which are great for database manipulations.

In reply to Re: newbie: DB versus DIR/PAG database files by Roger
in thread newbie: DB versus DIR/PAG database files by kleucht

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.