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Using the wrong class to access a database

(); } static void retrieve(EntityManager em) { // 1 Query q1 = em.createQuery("SELECT COUNT(p) FROM ... a second time, the count is zero and the average is null. - the first app cannot add points anymore

Clarification on free license restrictions

unrestricted numbers of embeddable classes? Do embeddable classes count as part of the ten? I assume not ... are count as entity classes but other serializable classes are unlimited

Items in list are doubled, when the entity class is not enhanced

); System.out.println("Item count = "+c.getItemList().size()); em.close(); emf.close(); } } The result is "Item count = 2". Is this another bug

Date field Index is corrupted due to time change

.createQuery("SELECT COUNT(r) FROM DateTime AS r");         em.getTransaction().begin();         Long r ... ();         }         q = em.createQuery("SELECT COUNT(r) FROM DateTime AS r");         em.getTransaction

Out of memory

total object count: 3624395444842555492 (expected 3096704) [4] Unexpected total page count

Is there a function of "drop table" or "delete from table"?

" can clear the id counting. Any idea? gzdillon Lai Yang Resetting generated ID sequences is not

Sorting problem

this kind of method: public List<Product> list(     int start, int count, String sortColumn, boolean

Exceeding max connections and crashing

to the database, initial count was 500 but it wasn’t enough and we increased it to 5000

Internal Exception: null

The query SELECT COUNT(t) FROM TrackerUser t WHERE NOT t.username = :username with :username -> "admin" leads to the following exception: com.objectdb.o.InternalException: null com.objectdb.o.InternalException at com.objectdb.o.InternalException.f(InternalException.java:236) at com.objectdb

ObjectDB needs "insert ignore"

have to do this for inserting: @NamedQuery( name="isExistName", query="SELECT count(c) FROM Student c

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