Home » Search

About bulk delete

1-10 of 200Refresh
Manual
248

DELETE Queries in JPA/JPQL

As explained in chapter 2, entity objects can be deleted from the database by: Retrieving ... . Applying changes to the database by calling the commit method. JPQL DELETE queries provide an alternative way for deleting entity objects. Unlike SELECT queries, which are used to retrieve data from
Manual
95

Deleting JPA Entity Objects

Existing entity objects can be deleted from the database either explicitly by invoking the remove method or implicitly as a result of a cascade operation. Explicit Remove In order to delete an object ... transaction, it can be deleted using the remove method: Employee employee = em.find(Employee.class, 1
Forum
36

Bulk Delete and Update - best practice?

The attached test creates 1000 large objects and then attempts to delete them all in one go using a DELETE statement. I'm trying to run with -Xmx512m but the test runs out of memory during the delete ... both tests with the default objectdb.conf. In general is an UPDATE/DELETE statement the most efficient way
Manual
22

UPDATE SET Queries in JPA/JPQL

Explains how to apply server side bulk update using a JPA/JPQL query.
JDO Doc
20

InstanceLifecycleEvent.DELETE

Static Field javax.jdo.listener.InstanceLifecycleEvent int DELETE Since: JDO 2.0
JDO Doc
20

ObjectState.PERSISTENT_DELETED

Enum Constant javax.jdo.ObjectState PERSISTENT_DELETED Since: JDO 1.0
JDO Doc
20

ObjectState.PERSISTENT_NEW_DELETED

Enum Constant javax.jdo.ObjectState PERSISTENT_NEW_DELETED Since: JDO 1.0
Manual
16

Chapter 3 - Using JPA

Explains how to store, retrieve, update and delete entity objects using JPA.
Manual
16

CRUD Operations with JPA

Explains how to use JPA for CRUD database operations (persist, retrieve, update, remove).
Issue
12

Bulk load of eager mapped by (inverse) relationships

and collection of objects that have to be loaded eagerly are loaded in bulk for better performance ... in a bulk load, which means that every reference requires running a separate query and doing ... ) fields in bulk as well. Bulk load of eager mapped by (inverse) singular references is now supported in build 2.4.4_13. kborkowski lwalkowski