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EJB Interview Questions and Answers

Ques. What is abstract schema?
Ans. Abstract schema is part of an entity beanís deployment descriptor which defines the beanís persistent fields and their relationship. Abstract schema is specified for entity beans with container managed persistence. We specify the name of the Abstract schema name in the deployment descriptor. The queries written in EJB QL for the finder methods references this name. The information provided in this Abstract Schema is used by the container for persistence management and relationship management.
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