9 | JPA Query Structure (JPQL / Criteria), multiselect, array, tuple, construct). Criteria FROM (from, join, fetch). Criteria WHERE (where). Criteria |
9 | JPA Queries variables, join and fetch): Other criteria query expressions (for all the query clauses): |
9 | DELETE Queries in JPA/JPQL multiple variables and JOIN, and cannot include the GROUP BY, HAVING and ORDER BY clauses |
9 | What are the main benefits of using ObjectDB? that ability and require multiple tables, multiple records and join operations in order to support |
9 | 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 |
9 | UPDATE SET Queries in JPA/JPQL name) for iteration. Multiple variables and JOIN are not supported. The SET clause defines one or |
9 | Online Backup); Thread backupThread = backupQuery.getSingleResult(); backupThread.join(); // Wait |
9 | JPA Criteria API Queries). FROM clause (from, join, fetch). WHERE clause (where). GROUP BY / HAVING clauses (groupBy, having |
9 | javax.persistence.PrimaryKeyJoinColumn get methods) Specifies a primary key column that is used as a foreign key to join to another table. It is used to join the primary table of an entity subclass in the JOINED mapping strategy to the primary table of its superclass; it is used within a SecondaryTable annotation to join a secondary table |
9 | javax.persistence.criteria.JoinType, Comparable<JoinType> Defines the three types of joins. Right outer joins and right outer fetch joins are not required to be supported in Java Persistence 2.0. Applications that use RIGHT join types will not be portable. Since: JPA 2.0 JoinType INNER Inner join. Inner join. Since: JPA 2.0 JoinType LEFT |
