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how to query by properties of onetomany relations? (Error 990)

> However, this query is invalid. You cannot navigate through collections in JPQL directly ... /jpa/query/jpql/from#inner_join">FROM page of the ObjectDB manual. support Support JPQL. The following 2 queries are now equivalent:

JPA inheritance issue with ObjectDB - Field not found in type error

PharmaceuticalItem implements Serializable { // ... } I have a JPQL query that looks like this: String jpql = "Select ... ) { System.out.println("findByJpql"); System.out.println("JPQL: " + temSQL); System.out.println("Parameters

javax.persistence.criteria.Expression

JPA Criteria API's Expression in jpql/expression">Chapter 4

getFirstResult()

> Learn how to define and use JPA/JPQL queries in

javax.persistence.criteria.Selection

"> Learn how to use JPA Criteria API's Selection in jpql/select

javax.persistence.criteria.Path

"> Learn how to use JPA criteria API paths in jpql/path">Chapter 4

javax.persistence.criteria.Predicate

in jpql/logical">Chapter 4 of the ObjectDB/JPA manual

javax.persistence.criteria.Root

"> Learn how to use JPA criteria API's Root in jpql/from">Chapter 4

javax.persistence.criteria.Order

-notes"> Learn how to use JPA Criteria API's Order in jpql/order

javax.persistence.TypedQuery

> Learn how to define and use JPA/JPQL queries in