About bulk update

1-10 of 200Refresh
Manual
96

UPDATE SET Queries in JPA/JPQL

Existing entity objects can be updated, as explained in chapter 2, by: Retrieving the entity objects into an EntityManager. Updating the relevant entity object fields within an active transaction. Applying changes to the database by calling the commit method. JPQL UPDATE queries provide
Manual
96

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

Existing entity objects can be updated, as explained in chapter 2, by: Retrieving the entity objects into an EntityManager. Updating the relevant entity object fields within an active transaction. Applying changes to the database by calling the commit method. JPQL UPDATE queries provide
Manual
91

Updating JPA Entity Objects

persistence, which means that changes are detected and handled automatically. Transparent Update ... (); The entity object is physically updated in the database when the transaction is committed. If the transaction is rolled back and not committed the update is discarded. On commit the persist operation
Manual
86

Schema Update

ObjectDB tries to apply the specified schema updates every time a database is opened. When using client ... side where the up to date classes are located. The following element demonstrates the supported schema update
Forum
48

Bulk Delete and Update - best practice?

. The attachment also contains an update test which has similar memory problems. I'm running both tests with the default objectdb.conf. In general is an UPDATE/DELETE statement the most efficient way to update/remove a large number of objects? I've had success with the "drop" keyword in
JPA Doc
26

Column.updatable

Annotation Element javax.persistence.Column boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 1.0
JPA Doc
26

JoinColumn.updatable

Annotation Element javax.persistence.JoinColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 1.0
JPA Doc
26

MapKeyColumn.updatable

Annotation Element javax.persistence.MapKeyColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 2.0
JPA Doc
26

MapKeyJoinColumn.updatable

Annotation Element javax.persistence.MapKeyJoinColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 2.0
JPA Doc
26

OrderColumn.updatable

Annotation Element javax.persistence.OrderColumn boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 2.0