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Manual
10

Running JPA Queries

other case. In addition, the Query interface defines a method for running DELETE and UPDATE queries: Query.executeUpdate - for running only DELETE and UPDATE queries. Ordinary Query Execution ... and if there is any chance that these exceptions might be thrown they have to be caught and handled. DELETE
Manual
10

CRUD Database Operations with JPA

it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... is a very powerful query language and chapter 4 of this manual describes it in detail. Updating and Deleting ... to retrieve them (e.g. as a Query factory). To delete an object from the database, you need to obtain
Forum
9

Delete object from collection versus delete from JPQL

persist() to write them to the database.  But does running a JPQL update or delete alter the in-memory ... , but I'm not sure if that will alter my program state.  Will it? Thanks, Lee  UPDATE and DELETE queries ... between memory and database objects. See these manual pages for more details: DELETE queries UPDATE
Manual
9

Detached Entity Objects

when applicable (e.g. to entity objects that the Address object references, if any). Bulk Detach
Result
9

What is new in ObjectDB 2.0?

trips in JDO bulk operations (e.g. refreshAll). JDO Enhancer supports enhancing of complete JAR files.
Manual
8

Database Explorer

window) and then pasted on a reference that has to be set. The functionality of the Edit > Delete command depends on the context. Deleting a reference field sets the value to null without deleting any referenced entity object. On the other hand, deleting an entity object that is represented by a child
Manual
8

Server User List

" ip="127.0.0.1" admin="true">
Manual
7

Working with JPA Entity Objects

requires using entity objects for many operations, including storing, retrieving, updating and deleting ... . A managed entity object can also be retrieved from the database and marked for deletion, by using ... Managed to Removed, and is physically deleted from the database during commit. More details on object
Forum
7

Handling deleted references

Hi support team, I have a problem when using DELETE query to delete Entity instances. We use ... has a profile. To reset a profile I run a DELETE query on the old profile , hoping that this would lead ... , which simply checks if the profile instance is such a "intermediate/deleted" instance. Is there a way
Forum
7

Unable to delete the .odb file programatically

Hi, I created the test.odb file, read the contents and now trying the delete the odb file using ... , when i am trying to delete the file using the followng code     File[] files = parentDir.listFiles();     for (File temp : files ) {         boolean deleted = file.delete(); // getting false