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Manual
17

Query Parameters in JPA

Query parameters enable the definition of reusable queries. Such queries can be executed ... execution, because it eliminates the need for repeated query compilations. Named Parameters (:name ... for a real value. Before the query can be executed a parameter value has to be set using the setParameter
Manual
17

UPDATE SET Queries in JPA/JPQL

the database, UPDATE queries do not retrieve data from the database, but when executed, update ... queries can only be executed within an active transaction and the changes are visible to other users ... , area = 0 UPDATE queries are executed using the executeUpdate method:   Query query = em
Manual
17

JPA / JDO Class Enhancer

>     <executions>       <execution>       compile               java            execution>     executions
Result
17

ObjectDB Object Database Features

annotations (@NamedQuery) and XML. Query parameters for efficient reuse of one query in multiple executions ... database content. Query execution using JPA JPQL and JDO JDOQL + query execution plan explanation ... as Windows EXE and Unix/Linux/Mac OS executable script. Easily managed from a system tray icon
Manual
14

Online Backup

applications. Starting Online Backup The online backup can be started by executing a special query ... executing the backup query:     Query backupQuery = em.createQuery("objectdb backup ... /201012312359/test.odb under the ObjectDB home directory. Online Backup Thread Executing the backup query
Manual
14

SELECT clause (JPQL / Criteria API)

instance, which represents results as arrays. The following code demonstrates execution of the query ... execution of the query and iteration over the results: List results = em.createQuery(q ... the above example). The following code demonstrates execution of the query: List
JPA Doc
14

javax.persistence.TypedQuery

the execution of typed queries. Since: JPA 2.0 See Also: Query Parameter Learn how to define and use JPA/JPQL queries in Chapter 4 of the ObjectDB/JPA manual. int executeUpdate() Execute an update or delete statement. Execute an update or delete statement. Returns: the number of entities updated or deleted
Manual
12

Database Management Settings

execution of relevant queries. The element
Manual
12

Date and Time in JPQL and Criteria Queries

that are evaluated to the date and time on the database server when the query is executed: CURRENT_DATE ... expressions are reevaluated on the server on every query execution to reflect the date and time
Manual
12

JPA Criteria API Queries

, at least for simple static queries, since the equivalent JPQL query could simply be executed as ... are represented by a TypedQuery instance - query execution and query setting is similar, regardless