About ORDER BY

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Manual
12

DELETE Queries in JPA/JPQL

cannot include multiple variables and JOIN, and cannot include the GROUP BY, HAVING and ORDER BY clauses ... As explained in chapter 2, entity objects can be deleted from the database by: Retrieving ... transaction, either explicitly by calling the remove method or implicitly by a cascading operation
Manual
12

UPDATE SET Queries in JPA/JPQL

queries cannot include the GROUP BY, HAVING and ORDER BY clauses, but the WHERE clause ... Existing entity objects can be updated, as explained in chapter 2, by: Retrieving the entity ... . Applying changes to the database by calling the commit method. JPQL UPDATE queries provide
Manual
12

UPDATE SET Queries in JPA/JPQL [2011-11-22]

queries cannot include the GROUP BY, HAVING and ORDER BY clauses, but the WHERE clause ... Existing entity objects can be updated, as explained in chapter 2, by: Retrieving the entity ... . Applying changes to the database by calling the commit method. JPQL UPDATE queries provide
JPA Doc
12

javax.persistence.criteria.CriteriaQuery

have been specified. Returns: having clause predicate Since: JPA 2.0 List<Order> getOrderList() Return the ordering expressions in order of precedence. Return the ordering expressions in order of precedence. Returns empty list if no ordering expressions have been specified. Modifications to the list
Forum
12

Update is ignored by ObjectDB

Hi! Sorry for my bad english skills. When I execute fulfilOrder, only Order entity is updated in ... ; @PersistenceContext(unitName = "SMShop") private EntityManager shopdb; ... public Order fulfilOrder(Long orderID, Long userID, int itemID) { Order order = shopdb.find(Order.class, orderID); if (order
Tutorial
12

Step 3: Define an EJB Session Bean

ORDER BY g.id", Guest.class); return query.getResultList(); } } The GuestDao session ... Operations on the database will be performed by an instance of a session bean (EJB) class that we will define in this step: Open the [New Java Class] dialog box by right clicking the guest package
Tutorial
12

Step 3: Define an EJB Session Bean

() { TypedQuery query = em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest ... Operations on the database will be performed by an instance of a session bean (EJB) class that we will define in this step: Open the [New Session Bean] dialog box by right clicking the guest package
Manual
12

JPA Query Expressions (JPQL / Criteria)

consists of clauses - SELECT, FROM, WHERE, GROUP BY, HAVING and ORDER BY, and each clause consists ... of at least one atomic component. More complex query expressions are built by combining atomic ... the following operators (in order of decreasing precedence): Navigation operator (.) Arithmetic operators
Manual
12

Obtaining a JPA Database Connection

In JPA a database connection is represented by the EntityManager interface. Therefore, in order ... to get an EntityManager instance. JPA requires the definition of a persistence unit in an XML file in order ... string that ends with .odb or .objectdb is considered by ObjectDB to be a database url
JDO Doc
11

javax.jdo.PersistenceManager

the PersistenceManagerFactory (recommended) or by construction. Since: JDO 1.0   void ... JDOUserException if the instance is transient or is managed by another PersistenceManager. Parameters: pc ... the affected instances is as specified by the FetchPlan. Parameters: pc - the instance to detach Returns