I'm not a Class::DBI guy, so I won't comment there. As for DBI and Apache::DBI, though, here's the scoop: Apache::DBI, if loaded, will override DBI's connect method (by way of defaulting the "connect_method" DBI connection attribute to 'Apache::DBI::connect'), and thus use Apache::DBI's connection caching. However, if you want to override this and ALWAYS use DBI's connection caching, then you can set $DBI::connect_via to "connect_cached". 
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In reply to Re: DBI::connect_cached, Apache::DBI and Class::DBI by etcshadow
in thread DBI::connect_cached, Apache::DBI and Class::DBI by johnnywang

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