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41-50 of 200 resultsRefreshWHERE clause (JPQL / Criteria API). It is essential in any JPQL query that retrieves selective objects from the database. Out of the four optional ... > How a WHERE Clause Works The following query retrieves ... passing them to the SELECT clause. For example, the following query retrieves | |
Running JPA Queries> Ordinary Query Execution (with getResultList) The following query retrieves ... /select">projection and retrieving country names directly instead of retrieving the entire Country | |
JPA Exceptions can also be thrown on an attempt to retrieve entity objects from the database. For example, when a required ... "> The lock exceptions (above) may also be thrown during retrieval, if database lock has been requested for retrieved entity objects and it cannot be granted. | |
Setting and Tuning of JPA Queries expression retrieves the results for a specified page: List<Country> ... that the query retrieves. For example, the following query execution sets a pessimistic WRITE lock | |
Step 3: Add a Main Class In this step we will add a main class to the project to store and retrieve Point ... ()); // Retrieve all the Point objects from the database: TypedQuery<Point> query ... objects in the database, and then runs a few queries, including a query that retrieves all 1000 | |
Step 3: Add a Main Class with the project) in order to store Point objects in the database and then retrieve them from ... .getSingleResult()); // Retrieve all the Point objects from the database: TypedQuery ... , including a query that retrieves all the 1000 Point objects from the database. Finally | |
Step 4: Add a Servlet Class> is retrieved from the application scope attribute, and then an EntityManager All the Guest entity objects are retrieved | |
Step 3: Define an EJB Session Bean persist(Guest guest) { em.persist(guest); } // Retrieves all the guests: public ... in the database. getAllGuests - for retrieving all the existing | |
Step 3: Define a Spring DAO Component.persist(guest); } // Retrieves all the guests: public List<Guest> ... . getAllGuests - for retrieving all the existing Guest | |
[ODB1] Chapter 5 - JDO Connections, retrieving, updating and deleting database objects, are provided in the next chapter (retrieval of an object from the database a READ ... whether or not database operations that do not modify the database content (queries, object retrieval |