About jpql

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Issue
16

JPQL Subqueries (JPA 1.0)

The JPQL (Java Persistence Query Language) supports defining subqueries, which are nested queries that are embedded in other queries. Subqueries are currently not supported by ObjectDB, and as a workaround, you can use a sequence of two or more queries, where the results of one query serves as
Forum
16

member visiting in jpql

? TIA The length field of arrays is not supported by JDOQL / JPQL queries. You may maintain an ordinary
Forum
16

Possible issue for JPQL IS EMPTY expression

Possible issue for JPQL IS EMPTY comparison expression: SELECT e FROM MyEntity e WHERE e.collection-valued IS EMPTY throws javax.persistence.PersistenceException: Invalid operand type  for operator IS EMPTY (error 756) Thanks. Note: It doesn' t work with SIZE(): SELECT e FROM MyEntity e WHERE SIZE
Forum
16

Will Entire JPQL Supported by ObjectDb?

management taken care here ? Thanks in Advance , Jana Some JPQL features are not supported yet by
Manual
16

Retrieving JPA Entity Objects

queries. The official query language of JPA is JPQL (Java Persistence Query Language). It enables ... . JPA queries and JPQL are described in chapter 4. Retrieval by Refresh Managed objects can be reloaded
Forum
15

JPQL query to get entities that does not have a child entity in their child entities

JPQL query to get entities that does not have a child entity in their child entities
Issue
15

JPQL support for mapped by (inverse) collections

JPQL support for mapped by (inverse) collections
Forum
15

KEY() / VALUE() not recognized in JPQL??

KEY() / VALUE() not recognized in JPQL??
JPA Doc
11

JPA Annotations for SQL Queries

The following JPA annotations are designated for SQL queries on relational databases: ObjectDB supports only the preferred JPA query language, JPQL, and silently ignores all the above annotations.
FAQ
11

What are the main benefits of using ObjectDB?

JPQL (JPA Query Language) and JDOQL (JDO Query Language) queries directly, where ORM tools first