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208	Paths and Types in JPQL and Criteria API are represented in the JPA Criteria API by the Path interface and by its subinterfaces (From, Root, Join
208	ORDER BY clause (JPQL / Criteria API) Country c ORDER BY c.currency, c.population DESC can be built using the criteria query API as follows
197	FROM clause (JPQL / Criteria API) Explains how to use the FROM clause and JOIN expressions in a JPA/JPQL query.
197	Logical Operators in JPQL and Criteria API Explains how to use AND, OR and NOT in JPQL queries.
197	ObjectDB API Reference All about ObjectDB API Reference in Java/JPA database - explanations, examples, references, links and related information.
197	ObjectDB APIs All about ObjectDB APIs in Java/JPA database - explanations, examples, references, links and related information.
197	Comparison in JPQL and Criteria API Explains how comparison operators can be used in JPQL queries, including in comparing null values.
33	ObjectDB Object Database Features support of the JPA and JDO APIs. Fundamental features of relational databases (e.g. primary keys, derived ... (the ObjectDB Doctor). Standard Persistence APIs ObjectDB is the only Object-Oriented Database with built in support for JPA 2. Java Persistence API (JPA) Most features of JPA 2 are supported. Support
29	ObjectDB - Object Database for Java (JPA/JDO) API (JPA). It is the first persistence solution that combined a powerful database with JPA support in ... your investment. Use a standard Java API. ObjectDB became the first Object Oriented Database with built in support for the two standard Java database APIs: Java Persistence API (JPA) Java Data Objects (JDO
27	Query Parameters in JPA (:) followed by a valid JPQL identifier that serves as the parameter name. JPA does not provide an API for defining the parameters explicitly (except when using criteria API), so query parameters ... . Criteria Query Parameters In a JPA query that is built by using the JPA Criteria API - parameters (as

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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Copyright © 2003, 2010, 2023 ObjectDB Software, all rights reserved. The JPA API Reference Documentation (JavaDoc) on this website 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. The JDO API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the JDO 2.2 API and is available under the terms of the Apache License, v. 2.0. Images on this website are available under these licecnes. Documentation on this website explains how to use JPA in the context of the ObjectDB Object Database but mostly relevant also for ORM JPA implementations, such as Hibernate (and HQL), EclipseLink, TopLink, OpenJPA and DataNucleus. ObjectDB is not an ORM JPA implementation but an Object Database (ODBMS) for Java with built in JPA 2 support.