In “Reading Tables: Class RWDBReader” and “Inserting Data” we saw how data can be read using RWDBReader and inserted using RWDBInserter. The DB Interface Module also provides the alternative classes RWDBBulkReader and RWDBBulkInserter, which implement reading and writing directly from arrays supplied by an application. If your underlying database supports array processing and your application reads and writes large amounts of data at a time, these classes can increase your application performance relative to RWDBReader and RWDBInserter.