28 | 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 |
4 | javax.persistence.JoinColumn a column for joining an entity association or element collection. If the JoinColumn annotation itself is defaulted, a single join column is assumed and the default values apply. Example: @ManyToOne ... @JoinColumn(name="CUST_ID") // join column is in table for Order public Set |
4 | javax.persistence.MapKeyJoinColumn) Specifies a mapping to an entity that is a map key. The map key join column is in the collection table, join table, or table of the target entity that is used to represent the map. If no MapKeyJoinColumn annotation is specified, a single join column is assumed and the default values apply. Example 1 |
3 | SELECT clause (JPQL / Criteria API) can be added to the SELECT clause by using a bound JOIN variable in the FROM clause. Nested path expressions |
3 | JPA Query Structure (JPQL / Criteria), multiselect, array, tuple, construct). Criteria FROM (from, join, fetch). Criteria WHERE (where). Criteria |
3 | JPA Queries variables, join and fetch): Other criteria query expressions (for all the query clauses): |
3 | DELETE Queries in JPA/JPQL multiple variables and JOIN, and cannot include the GROUP BY, HAVING and ORDER BY clauses |
3 | What are the main benefits of using ObjectDB? that ability and require multiple tables, multiple records and join operations in order to support |
3 | WHERE clause (JPQL / Criteria API): SELECT c, l FROM Country c JOIN c.languages l WHERE c.population > :p AND l in :languages The FROM |
3 | UPDATE SET Queries in JPA/JPQL name) for iteration. Multiple variables and JOIN are not supported. The SET clause defines one or |
