8 | 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 |
8 | 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 |
8 | 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 |
8 | 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 |
8 | Out of memory total object count: 3624395444842555492 (expected 3096704) [4] Unexpected total page count |
5 | 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 |
5 | Sorting problem this kind of method: public List<Product> list( int start, int count, String sortColumn, boolean |
5 | Exceeding max connections and crashing to the database, initial count was 500 but it wasn’t enough and we increased it to 5000 |
1 | Internal Exception: nullThe 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 |
1 | ObjectDB needs "insert ignore" have to do this for inserting: @NamedQuery( name="isExistName", query="SELECT count(c) FROM Student c |
