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97

Criteria Query results in a NoResultException instead of returning object

._NoResultException: No matching results for a unique query at org.jboss.seam.security.IdentityImpl ... by: com.objectdb.o._NoResultException: No matching results for a unique query at com.objectdb.o.JPE
97

Multiple joins did not return expected result

AS event2 WHERE c1.id=?1 OR c2.id=?1 instead? There is no error at all, just an empty result. Thats ... doppelrittberger Markus Ritter Running two different separate queries and merging the results (e.g. into
96

Indexing a field results in internal Exception

. Is there anything I can look for that might result in this exception? sjzlondon Steve Zara More details
96

Bug with unique constraint exception not resulting in transaction roll back

Removing @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW) on my method does result in
96

Cache configuration of database file pages, query programs, query results

Are there some possibilities to configure following caches in order to keep cache data for only some important entity types and for the entire life cycle of the EntityManagerFactory. Cache of database file pages. Cache of query programs. Cache of query execution results. btc_es BTC EmbeddedSystems
96

Fields in objects not populated in query result.

the same query from the Explorer gives the results as expected. Any ideas what I'm doing wrong
96

An InternalException occurs when gets an result list

with query option: query.setHint("objectdb.result-fetch", "LAZY"); btc_es BTC EmbeddedSystems The exception
96

CriteriaQuery using isNotNull with other conditions results in InternalException

.where(predicates.toArray(new Predicate[predicates.size()])); List results = em.createQuery
19

NoResultException: No matching results for a unique query

I am very often getting a "com.objectdb.o._NoResultException: No matching results for a unique query" when modifying my already persisted entities within a transaction. I cannot replicate ... Alexander Adam The stack trace indicates a normal situation of executing a query that has no results
19

ORDER BY clause (JPQL / Criteria API)

The ORDER BY clause specifies a required order for the query results. Any JPQL query that does not include an ORDER BY clause produces results in an undefined and non-deterministic order. ORDER BY ... clause produces objects for examination and the WHERE clause selects which objects to collect as results

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Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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