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select(expression) - JPA Subquery's method

Specify the item that is to be returned as the subquery result. Replaces the previously specified selection, if any.
Parameters:
expression - expression specifying the item that is to be returned as the subquery result
Returns:
the modified subquery
Since:
JPA 2.0

This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
ObjectDB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.