Hi Monks, 
I want to walk one table and:  
  summarize some raw data      (select ...
  create a new summary record  (insert into ... (same tbl)
  delete the raw data          (delete from ... (same tbl)
  # I don't think I can use a single (complex) SQL stmt...

[download]
I'll put this in a transaction...(like the recent DBI and transactions post)

And I plan on only supporting a relational db, but haven't decided: (sql, oracle, mysql)

The DBI docs state that:

Portable applications should not assume that a new statement can be prepared and/or executed while still fetching results from a previous statement.

This happens to me testing the latest DBI/DBD::ODBC

If I open another $dbh, I don't think transactions will work

Am I missing something?

thanks!!!

In reply to dbi and mult statements by smackdab

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.