About join

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Manual
10

JPA Query Structure (JPQL / Criteria)

, array, tuple, construct). Criteria FROM (from, join, fetch). Criteria WHERE (where). Criteria
Manual
10

Online Backup

.join(); // Wait until the backup is completed.     // Do something with the backup (e.g. upload
Manual
10

WHERE clause (JPQL / Criteria API)

language from a specified set of languages: SELECT c, l FROM Country c JOIN c.languages l WHERE c
Manual
10

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
JPA Doc
10

JPA Queries

variables, join and fetch): Other criteria query expressions (for all the query clauses):
Manual
10

UPDATE SET Queries in JPA/JPQL [2011-11-22]

variable name) for iteration. Multiple variables and JOIN are not supported. The SET clause defines one or
Manual
10

UPDATE SET Queries in JPA/JPQL

variable name) for iteration. Multiple variables and JOIN are not supported. The SET clause defines one or
JPA Doc
10

javax.persistence.criteria.JoinType

, Comparable 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
JPA Doc
10

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
JPA Doc
9

javax.persistence.AssociationOverride

, the joinColumns element is used. If the relationship mapping uses a join table, the joinTable element must be specified to override the mapping of the join table and/or its join columns. Example 1: Overriding ... See Also: Embedded Embeddable MappedSuperclass AttributeOverride JoinColumn[] joinColumns The join