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2

@OneToMany(fetch = FetchType.LAZY) list is always null

: @Entity public class Parent { @Id @GeneratedValue(strategy = GenerationType.AUTO ... (strategy = GenerationType.AUTO) @Id private int id; @Lob private byte[] bytes
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2

Beginners questions

@Column(name = "ID") @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @OneToMany (fetch ... = GenerationType.AUTO) private Long id; @ManyToOne @Column(name = "VERLAG_ID") @JoinColumn(name="VERLAG_ID
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2

Double persist of Entity field with Cascade.ALL

follows: @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; private String ... > chapters; The Chapter fields are as follows: @Id @GeneratedValue(strategy = GenerationType.AUTO
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2

Duplicate Entity class names causes Exception in Query

.Singleton.count", Long.class); q.setFlushMode(FlushModeType.AUTO); try { return q ... to see its results   q.setFlushMode(FlushModeType.AUTO);   try {    long l = (Long) q.getSingleResult
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2

Empty temporary dat files in the temp folder

();   em.setFlushMode(FlushModeType.AUTO);   em.getTransaction().begin();   MyEntity myEntity = new ... .createEntityManager();   em.setFlushMode(FlushModeType.AUTO);   em.getTransaction().begin
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2

Entity has be persistended,but query not fetched?

.setFlushMode(FlushModeType.AUTO); query.getResultList();   The following example demonstrates ... .createQuery("SELECT u FROM User u");         query.setFlushMode(FlushModeType.AUTO
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2

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

serialization="false" />                                                
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2

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

.jdo.PersistenceManager.class).getSequence("$auto");     sequence.allocate((int)-sequence.currentValue ... . "$auto" is the name of the automatic global sequence. The name of an identity sequence (specific
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2

Join query problem with new statetment

= GenerationType.AUTO)     @Id     private long id;     @Index     private String name ... (strategy = GenerationType.AUTO)     @Id     private long id;     @Column(nullable = false
Forum
2

List always null

= GenerationType.AUTO)     private Long id;     @ManyToOne(targetEntity = Categoria.class)     private List ... = GenerationType.AUTO)     private Long id;     @OneToMany(targetEntity = Noticia.class, mappedBy = "categorias