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DELETE Queries in JPA/JPQL

As explained in delete">chapter 2, entity objects can be deleted from the database by: Retrieving the entity objects into ... to the database by calling the commit method. JPQL DELETE queries provide

Deleting JPA Entity Objects

Existing entity objects can be deleted from the database either explicitly by invoking ... In order to delete an object from the database it has to first be retrieved (no matter which way) and then in an active transaction, it can be deleted using the

Delete object from collection versus delete from JPQL

update or delete alter the in-memory objects? There are cases where the JPQL syntax ... and DELETE queries bypass the EntityManager entity object management ... for more details: delete">DELETE queries

Deletion of an entry via the table window always deletes the last entry not the selected one

If I open a class in the explorer via the "Open Table Window" button, select a row by its index and prex "Del" or use right click "Delete" the last entry of the table is removed and not ... . deleting the first row in a table of two rows deletes the first row as expected). More information

ObjectState.PERSISTENT_DELETED

Enum Constant javax.jdo.ObjectStatePERSISTENT_DELETED

ObjectState.PERSISTENT_NEW_DELETED

Enum Constant javax.jdo.ObjectStatePERSISTENT_NEW_DELETED

InstanceLifecycleEvent.DELETE

Static Field javax.jdo.listener.InstanceLifecycleEventint DELETE

[ODB1] Chapter 6 - Persistent Objects

(unless it is being deleted before commit). An attempt to call makePersistent(...deleted from the database, its unique ID is never used ... >, because the object is not deleted from the database, just its name is removed. Objects with names

[ODB1] Chapter 9 - ObjectDB Explorer

the copy and use it to start Explorer. In this way, the edited script will not be deleted ... ), you can copy, cut, paste, delete and rename directories and files. You can also use this dialog ... >You can also delete or rename a selected persistent class using the "Edit | Delete" and the "Edit

[ODB1] Chapter 8 - ObjectDB Server

be deleted when extracting the files of a newer ObjectDB version to the same installation directory.delete="+" /> </dir> ... ; <dir path="/"> <permissions access="+" modify="+" create="+" delete="+" />