About getSingleResult

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Tutorial
19

Step 3: Add a Main Class [2011-02-11]

) FROM Point p"); System.out.println("Total Points: " + q1.getSingleResult ... "); System.out.println("Average X: " + q2.getSingleResult()); // Retrieve all the Point
Tutorial
19

Step 3: Add a Main Class [2018-10-20]

) FROM Point p"); System.out.println("Total Points: " + q1.getSingleResult ... "); System.out.println("Average X: " + q2.getSingleResult()); // Retrieve all the Point
Tutorial
19

Step 3: Add a Main Class

COUNT(p) FROM Point p"); System.out.println("Total Points: " + q1.getSingleResult ... "); System.out.println("Average X: " + q2.getSingleResult()); // Retrieve
Tutorial
19

Step 3: Add a Main Class [2011-02-11]

Points: " + q1.getSingleResult()); // Find the average X value: Query q2 = em ... .getSingleResult()); // Retrieve all the Point objects from the database: TypedQuery
Tutorial
19

Step 3: Add a Main Class

: " + q1.getSingleResult()); // Find the average X value: Query q2 = em.createQuery("SELECT AVG(p.x) FROM Point p"); System.out.println("Average X: " + q2.getSingleResult
Manual
13

Setting and Tuning of JPA Queries

The Query and TypedQuery interfaces define various setting and tuning methods that may affect query execution if invoked before a query is run using getResultList or getSingleResult. Result Range (setFirstResult, setMaxResults) The setFirstResult and setMaxResults methods enable defining a result
JPA Doc
8

javax.persistence.NonUniqueResultException

Interfaces: Serializable Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult() is executed on a query and there is more than one result from the query ... .0 See Also: Query.getSingleResult() TypedQuery.getSingleResult() NonUniqueResultException
JPA Doc
8

javax.persistence.NoResultException

: Serializable Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult ... .getSingleResult() TypedQuery.getSingleResult() NoResultException() Constructs a new NoResultException exception
JPA Doc
5

javax.persistence.TypedQuery

back Since: JPA 2.0 Object getSingleResult() Execute a SELECT query that returns a single untyped result ... getSingleResult() Execute a SELECT query that returns a single result. Execute a SELECT query
JPA Doc
4

javax.persistence.Query

the query timeout value set and the transaction is rolled back Since: JPA 1.0 Object getSingleResult