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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are represented in the JPA Criteria API by the Path interface and by its subinterfaces (From, Root, Join
Country c ORDER BY c.currency, c.population DESC can be built using the criteria query API as follows
Explains how to use the FROM clause and JOIN expressions in a JPA/JPQL query.
Explains how to use AND, OR and NOT in JPQL queries.
All about ObjectDB API Reference in Java/JPA database - explanations, examples, references, links and related information.
All about ObjectDB APIs in Java/JPA database - explanations, examples, references, links and related information.
Explains how comparison operators can be used in JPQL queries, including in comparing null values.
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
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
(:) 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