Under the Hood

• DBI defines and implements an interface

• Driver modules do much of the real work

• DBI provides default methods, functions, tools etc for drivers

• Not limited to the lowest common denominator - mechanism provided for driver specific extensions

• Designed and built for speed

• Valuable detailed call tracing/debugging built-in

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Similar in concept to an ODBC Driver Manager

DBI provides methods, functions and tools etc

helps ensure conformant implementations

and efficient implementations

and more automatic support for new features