i'm using fetchrow_hashref to extract rows out of a database like 
while(fetchrow_hashref)
{print qq($data->{field1}\n);

[download]
-what is the best way, from within the while loop, to execute a query using the value of $data->{field1}?

i.e.,
while(fetchrow_hashref)
{
print qq($data->{field1};

# pseudocode to use $data->{field1} in another query, run query, anoth
+er while(fetchrow_hashref) to print out the results of the second que
+ry then...

# end original while loop
}

[download]
?
also, if anyone has dealt with this before, if the first while(fetchrow_hashref) returns identical values for $data->{field1} in subsequent iterations of the loop, know not to run the second query again on the same value for $data->{field1}?

thanks

janitored by ybiC: Minor format tweaks, including balanced <code> tags around snippets

In reply to dbi question by philosophia

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.