Lots of other people have already explained what the problem is ... however, in this particular case, it looks as if the data is denormalized, as there are two instances of the columns from 'TOTAL QUALITY' to 'EDITED'.

It looks to me as if the occurance of a blank header is a sign that the next grouping starts, but I can't be sure with only two groups.

From the looks of things, you're looking at records from a health department that tracks well water, and you have two tests per well. Unfortunately, without knowing what you're trying to do with this data, I can't really make any recomendation on how best to deal with it in a meaninful way.

In reply to Re: hash and array mismatch by jhourcle
in thread hash and array mismatch by dana

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.