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The ORDER BY clause specifies a required order for the query results. Any JPQL query ... BY c.population When using ObjectDB, any jpql/expression">JPQL expression whose type is comparable (i.e. numbers, strings and date values) and is derived

String values may appear in JPQL queries in various forms: as jpql/literal#string_literals">string literals - e.g. 'abc' as jpql/path">path expressions

Date and time expressions may appear in JPQL queries: as jpql/literal#date_and_time_literals">date and time literals - e.g. {d ... ="/java/jpa/query/jpql/path">path expressions - in navigation to persistent date and time fields

Logical operators in JPQL and in JPA criteria queries enable composition of complex JPQL boolean expressions out of simple JPQL boolean expressions. Set 1 - JPQL / SQL

Collections may appear in JPQL queries: as jpql/path">path expressions - in navigation to persistent collection fields ... >ObjectDB enables as an extension to standard JPQL to use both operators (IN and

The following annotations are used to define static named JPA queries: jpql"> The JPQL queries.

to the database by calling the commit method. JPQL DELETE queries provide an alternative way for deleting entity objects. Unlike jpql/select">

> method. JPQL UPDATE queries provide an alternative way of updating entity objects. Unlike jpql/select">SELECT queries, which are used

query jpql/from#left_outer_inner_join_fetch">FETCH JOIN.jpql/structure">query language - familiar to most developers.JPQL and JDOQL.

> JPA Criteria API vs JPQL JPQL queries are defined as ... . On the other hand, for many developers string based JPQL queries, which are very similar to SQL queries, are easier to use and understand. For simple static queries - string based JPQL queries (e.g. as