62 | Criteria query error: Unexpected query token.arquillian.spi.ArquillianProxyException: com.objectdb.o._PersistenceException : Unexpected query token ... It seems that the query is invalid because a SELECT is not specified. Unexpected query token 'FROM' (SELECT is expected) A query with no SELECT may be valid in Hibernate HQL but not in JPQL and JPA Criteria |
61 | ObjectDB Explorer query error: Unexpected query token 'value'Hi, my entity is named "XXXValue": this has several attributes, one of these is "value". In query tab, if I do "select value from XXXValue", I get the error <Unexpected query token 'value'>. I try "select XXXValue.value from XXXValue" and the error is the same. Queries on others attributes work |
61 | Querys slower when execute a query after every persistThe test case of the java file attachment persists many entities and executes a query ... requires only 20 sec, but the test requires 100 sec. Why the querys will be more and more slower? In ... (i.e. every query execution requires a more expensive flush). Results of your test with enhanced |
60 | Cache configuration of database file pages, query programs, query resultsAre 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 |
55 | Query problem after transaction commit to it. The client program can connect to the server and query to get all the records. However, after transaction ... _Connection: connecting 02> Test_Connection: connected 03> UI: start query [query for all object Goods ... = % 06> UI: end query 07> UI: start printing result 08> code= A, desc= Good A, byUser= test 09> code |
12 | Online Backup Backup The online backup can be started by executing a special query on an EntityManager (em ... ").getSingleResult(); The backup query string is always exactly "objectdb backup". The backup is created ... query: Query backupQuery = em.createQuery("objectdb backup"); backupQuery.setParameter |
11 | queries more than 10 times slower using 2.8.1 versus 2.7.6 not do any statistics generate, just tried to use the new version - our reference query that takes ... . It seems that running your query on your sample database with version 2.8.1 is slower if statistics is not ... more performance lose with this query, there is a good chance that the same applies to your newer database |
11 | queries under 2.7.6_4 significantly slower than under 2.7.6 indicating deep query plan checks and an overall significant performance loss in all queries ... since version 2.7.6 that could possibly effect query execution. Could you please explain or post some of these logs that show deep query plan checks (and are new in 2.7.6_04)? In addition |
1 | [ODB1] Chapter 4 - JDO Metadata of a class (including or excluding instances of subclasses) as well as execution of queries ... are not included in the extents of their classes, so they cannot be queried directly ... only in index declarations, as explained in the next section. 4.5 Index Definition Querying a large |
1 | javax.jdo.PersistenceManager application components. It is the factory for Query and Transaction instances, and contains methods ... of instances in the data store that might be iterated or given to a Query. The Extent itself might not ... of the specified Class Since: JDO 1.0 See Also: Query FetchGroup getFetchGroup(Class cls, String name |
