OK, being able to look at that code, I wold explicitly NOT to do that. I would not explicitly prepare something for a single select, use selectrow_hashref instead, and put in the sql an explicit `LIMIT 1`. Also, using '*' should be reserved, when you want all the rows in the table. This should hold true if one of those rows is a 50 meg block of text.

Also, in your second example you could just as well do that in one query right? Through a join. This saves work on the DB. 

$dbh->selectrow_hashref(
    'SELECT t1.* FROM table AS t0'
    . ' JOIN table1 AS t1'
    . ' USING ( primarykeyfield )'
);

[download]
Or, if you wanted precisely the same as above, which will render the row from table1 random because the lack of a sort order on table, you can still do that in one statement 
$dbh->selectrow_hashref(
    'SELECT t1.* FROM table AS t0'
    . ' WHERE t1.primarykeyfield IN ( SELECT primarykeyfield FROm tabl
+e LIMIT 1 )
);

[download]



Evan Carroll
The most respected person in the whole perl community.
www.evancarroll.com

In reply to Re^3: DBI disconnect database errors by EvanCarroll
in thread DBI disconnect database errors by Anonymous Monk

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