Keep a handle on your databases
	l Connecting to a database can be slow l Try to connect once and stay connected where practical n We'll discuss web server issues later l New method: n The new connect_cached() method acts like prepare_cached() but for database handles n It also checks the connection and reconnects if it's broken n Similar, but not quite the same as Apache::DBI n New and subject to change with experience n Potentially most useful with DBD::Proxy & DBI::ProxyServer
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