About INNER JOIN

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Forum
7

LEFT (OUTER) JOIN problem when mappedBy is defined

this query: "SELECT i FROM Invoice i LEFT OUTER JOIN i.itemList items" But this query never returns ... JOIN works correctly. Is this normal behaviour? Thank you Michael   Sample application public ... Invoice i LEFT OUTER JOIN i.itemList items"); List resultList = query.getResultList
Issue
7

Problem with JOIN and inheritance

.customer.VendorCustomer $1 JOIN $1.qubletFRAGMENTMAP $2, com.quasado.foundation.warehouse.contract ... I do select from "VendorCustomer" yet through using the join, he is also selecting all "Customer ... should not even join the $1.qubletFRAGMENTMAP of any other class but "VendorCustomer"!? thanks Alex My bad, 2.4.0 seems to fix it. quasado
Forum
7

"Problem" with cross join

=InheritanceType.JOINED) ... @ManyToOne private CI ci; subclass CIstring private String text; I ... fields in JOIN queries). Please try the new build (2.0.4_01) that should fix the bug. The attached test
Forum
6

joining of tables

Hi In objectdb site i found :Note: This ORM/SQL annotation is silently ignored by ObjectDB so i want  join tow table and generate a third table. Ex:  table 1: employee    table 2: address  and the generate table will be table 3: emp_add employee: e_id, e_name address: add_id, city, house
Issue
6

Mapped by fields are not initialized by JOIN FETCH in queries

As demonstrated in this forum thread, a mapped by collection field with lazy fetch mode is not initialized in results of a query that uses JOIN FETCH on that collection field (when enhancement is used).   Build 2.4.1_06 fixes this issue (fields are now initialized and the test in the forum passes
JPA Doc
6

javax.persistence.criteria.Subquery

root Since: JPA 2.0 Join correlate( Join parentJoin) Create a subquery join object correlated to a join object of the enclosing query. Create a subquery join object correlated to a join object of the enclosing query. Parameters: parentJoin - join object of the containing query Returns
Manual
6

Index Definition

above, the index order should be x first and y second. Indexes on collections are useful in JOIN queries: SELECT d FROM Document d JOIN d.words w WHERE w = 'JPA' The Document entity class contains a words ... for executing the following query: SELECT d FROM Document d JOIN d.words w WHERE LENGTH(w) >= 10
Result
6

Posting to ObjectDB Website - Important Instructions

. Whenever possible: Use a single Java file with one main class + static inner classes for entity / embeddable
Result
6

Posting to ObjectDB Website - Important Instructions [2018-08-06]

. Whenever possible: Use a single Java file with one main class + static inner classes for entity / embeddable
Forum
5

Performance issues on aggregate query

) from ObjectNode o INNER JOIN o.properties p1 INNER JOIN o.properties p2  INNER JOIN o.properties p3 INNER JOIN o.properties p4 INNER JOIN o.properties p5 INNER JOIN o.properties p6 INNER JOIN o.properties p7 join o.linkedObjects c1 where o.classIdentifier = '(OP)' and (o.linkedObjects