Why do you want to make life so miserable for yourself? Why not ask the database to do the update for you in one hit.
update table1 t1
set t1.field1 = 999
where exists (
select 1 from table2 t2 where t1.id = t2.id
Then you just have to debug your SQL. No Perl needed apart from a $db->do(''), no bugs to look for! Not to mention faster...
• another intruder with the mooring in the heart of the Perl
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link or
or How to display code and escape characters
are good places to start.