About bulk delete

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Forum
6

Cascade delete with unidirectional mapping

    Suppose entity A is referenced from entity B, like (A -> * B) but not actually having that reference, instead only B has @ManyToOne relationship to A and A has none. Is there a way to cascade delete of B's when deleting A? Or this should be done programatically with separate call to database
Forum
6

Need disk usage and delete some old files

    Hello , is it possible to get disk usage of database ? If disk usage becomes too high , delete old date files from database. And recalculate disk usage back ?   Since an ObjectDB database ... , please open a new forum thread, since this thread is titled "Need disk usage and delete some old files" and should be focus only on that subject. kadirbasol
Issue
6

delete of a collection in explorer changes type

accidently we used the option delete on a collection of type ArrayList. On doing so the type changed to List. we are using explorer version 2.7.1_02 How can we change that back again ? Is it only an issue with the type of the field as shown by the Explorer or
Forum
6

How to delete M2M relationship?

.ALL)     private Set timeslots = new HashSet(); And i would like to delete the timeslots..i've tried
Issue
6

Deleting a broken reference that was fixed to null in the Explorer

Using version 2.7.4_01, we did a repair. After repair a former link to a missing reference was converted to null. This cannot be deleted using explorer   Thank you for this report. Build 2.7.4_02 fixes the issue. hgzwicker
Issue
6

cannot delete objects after crash (see issue 2283)

after the crash we cannot delete specific objects, see screenshots of explorer. Database will be soon available (size 5.561.119 KB) on hummingbird-systems.com, user/pw your db name, main menu option objectdb  meanwhile the database became completely unusable, we had to stop and run the Doctor. Find
Manual
5

JPA Query Structure (JPQL / Criteria)

(update and delete queries have a slightly different form). The other JPQL clauses, WHERE, GROUP BY, HAVING and ORDER BY are optional. The structure of JPQL DELETE and UPDATE queries is simpler: DELETE
Manual
4

Database Management Settings

and deleted by ObjectDB when the database is closed. The name of the recovery file is based on the name ... in tests). The content of these temporary databases is deleted when using the drop url connection
Manual
4

SELECT clause (JPQL / Criteria API)

objects, transparent update detection, support for delete, etc. Query results are not limited to entity ... efficiently. They are less productive with operations that update or delete entity objects, in