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ORDER BY clause (JPQL / Criteria API)

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

Strings in JPQL and Criteria Queries

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 in JPQL and Criteria Queries

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 Criteria API

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 in JPQL and Criteria Queries

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

JPA Annotations for JPQL Queries

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

ObjectDB Object Database Features

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

JPA Criteria API Queries

> 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