Jakarta Persistence Query Language: Difference between revisions

Revision as of 13:14, 11 May 2011

Revision as of 06:33, 12 July 2011

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JPQL is used to make queries against entities stored in a relational database. It is heavily inspired by [[SQL]], and its queries resemble SQL queries in syntax, but operate against JPA entity objects rather than directly with database tables.

In addition to retrieving objects (<code>SELECT</code> queries), JPQL supports bulkset based <code>UPDATE</code> and <code>DELETE</code> queries.

==Examples==