You might want to give a second thought whether you should use Class::DBI. Even with language like Java (which is famous for its layers of abstration), the new trend of thought is to move away from "too much abstraction and temp object".
I have observed many Java applications, and many of us are moving away from the traditional DAO/DCO model. The level of abstraction of Class::DBI is even a bit higher than Java's DAO/DCO.
Especially with a database SQL-sensitive like Oracle, Class::DBI is a performance hit. Oracle cares a lot how you form your query, and you really should not leave that to a generic tool like Class::DBI.
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