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@OneToOne query issue with OR and IS NULL through a relationship is implemented using JOIN (i.e. INNER JOINJOIN a.another b WHERE a.another IS NULL OR b.counter = 0 You missed the clause. Try LEFT OUTER JOIN: | |
OR not working with isNull").get("id") is implemented as INNER JOIN. This is a requirement of the JPA specification ... to something such as: SELECT e FROM MyEntity e JOIN e.owner o WHERE o ... #left_outer_join">LEFT OUTER JOIN explicitly to cover entities with a null owner. support Support | |
Query to find object from element of a contained collection/jpa/query/jpql/from#inner_join">a multi variable query with JOIN. support Support JOIN, thank you. lo Hoel | |
Group by: list if no aggregate function is specified/from#left_outer_inner_join_fetch">JOIN FETCH for this purpose. support Support ... Hello! In a query like SELECT parent, children FROM Parent parent LEFT JOIN p.children children GROUP BY parent maybe it would be good if it will return a list | |
correlate(parentJoin)/Join" title="Interface in javax.persistence.criteria">Join<X,Y> correlate( Join" title="Interface in javax.persistence.criteria">Join<X,Y> parentJoin) Create a subquery join | |
MapKeyJoinColumn.table. If the join is for a map key for an element collection, the foreign key column is in the collection table for the map value. If the join is for a map key for a ManyToMany entity relationship or for a OneToMany entity relationship using a join table | |
MapKeyJoinColumn.name. The table in which it is found depends upon the context. If the join is for a map key ... . If the join is for a map key for a ManyToMany entity relationship or for a OneToMany entity relationship using a join table, the foreign key column is in a join table. | |
JoinColumn.table: If the join is for a OneToOne or ManyToOne mapping using a foreign key ... > If the join is for a unidirectional OneToMany mapping using a foreign key mapping strategy, the name of the table of the target entity. If the join is for a ManyToMany mapping or | |
javax.jdo.Constants/java/jdo/Constants/OPTION_MAPPING_JOINED_TABLE_PER_CLASS" title="Static Field of javax.jdo.Constants">OPTION_MAPPING_JOINED_TABLE_PER_CLASS JOINED_TABLE_PER_CONCRETE_CLASS" title |