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About INNER JOIN

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JPA Doc
1

MapKeyJoinColumn.referencedColumnName

Annotation Element javax.persistence.MapKeyJoinColumn String referencedColumnName (Optional) The name of the column referenced by this foreign key column. The referenced column is in the table of the target entity. Default (only applies if single join column is being used.) The same name as
JPA Doc
1

MapKeyJoinColumns.value

Annotation Element javax.persistence.MapKeyJoinColumns MapKeyJoinColumn[] value (Required) The map key join columns that are used to map to the entity that is the map key. Since: JPA 2.0
JPA Doc
1

PrimaryKeyJoinColumn.name

Annotation Element javax.persistence.PrimaryKeyJoinColumn String name (Optional) The name of the primary key column of the current table. Defaults to the same name as the primary key column of the primary table of the superclass (JOINED mapping strategy); the same name as the primary key column
JPA Doc
1

SecondaryTable.pkJoinColumns

Annotation Element javax.persistence.SecondaryTable PrimaryKeyJoinColumn[] pkJoinColumns (Optional) The columns that are used to join with the primary table. Defaults to the column(s) of the same name(s) as the primary key column(s) in the primary table. Default value: {} Since: JPA 1.0
JDO Doc
1

Value.generateForeignKey

Annotation Element javax.jdo.annotations.Value String generateForeignKey Generate or assume a foreign key constraint exists on the column or columns associated with this join. Specify "true" or "false". Returns: whether to generate or assume a foreign key constraint Default value: "" Since: JDO 2.1
Issue
1

Strange Error with Criteria API and Sorting

.Join; import javax.persistence.criteria.Root; public class Test_OrderBy { public static void ... root = query.from(TestEntity.class);   final Join otherJoin = root.join ... in thread "main" [ObjectDB 2.4.4_08] SELECT DISTINCT $1 FROM TestEntity $1 JOIN $1.other $2 ORDER
Forum
1

Problem with distinct select, order by and equivalent alias/attribute path

distinct s_location "             + "from Street s "             + "left join s.location as s ... "             + "left join s.location as s_location "             + "order by s.location.id asc ... "             + "from Street s "             + "left join s.location as s_location
Forum
0

ODB IndexActivation NullPointerException

(e.g. by using join). We run still into a dead lock. I adding a few screenshots and I hope it help ... ]  ->  waiting for  Thread id:427  (ODB-IndexActivation)   the Thread.join() was called by ObjectDB ... ;     } } if (indexActivationThread != null) {     try {         indexActivationThread.join();     } catch (InterruptedException
Forum
0

Concerning coding style of the example in the posting instructions

, the posting instructions state:  'Use a single Java file with one main class + static inner classes ... -level class.' While it may be handy to have a single file using static inner classes for entities
Forum
0

Using Enum type in NamedQuery: Field is not found in type

Persistable Types page Thanks for the help The problem may be related to using an inner class enum ... . $ instead of . to represent the inner class name. The following example should work with an empty database