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Database Connection using JPA

a user password in client server mode. drop - for deleting any existing ... , update, delete) must be performed within an active transaction. The

Locking in JPA

is applied on transaction commit. Any database object that has to be updated or deleted ... that has to be updated or deleted, and compares the version number of that object in the database

Chapter 1 - Quick Tour

and Delete) on ObjectDB databases. The example program that this chapter presents manages ... demonstrates CRUD database operations by storing, retrieving, updating and deleting Point objects

JPA Lifecycle Events

>@PostRemove - after deleting an entity from

FROM clause (JPQL / Criteria API)

_TIMESTAMP,DELETE, DESC, DISTINCT, ELSE, EMPTY, END, ENTRY, ESCAPE, EXISTS, FALSE, FETCH,FROM, GROUP

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How to install ObjectDB?

ObjectDB is distributed as a zip file. Just download and extract the ObjectDB distribution zip file. No need to run any install or setup program. You can uninstall ObjectDB by deleting the ObjectDB directory. ObjectDB does not modify the registry or any other system file.

javax.jdo.Query

">deletePersistentAll () Deletes ... "> Deletes all the instances of the candidate class that pass the filter. Returns the number of instances of the candidate class that were deleted, specifically not

javax.jdo.JDOEntityManager

of Query for executing a native SQL statement, e.g., for update or delete ... of Query for executing a native SQL statement, e.g., for update or delete ... > (Object pc) Delete the persistent instance from

ObjectDB 1.0 Manual

how to store, retrieve, update and delete database objects.