Record « Delete « JPA Q&A





1. problem in deleting record    stackoverflow.com

I have a entity manager em1 .em1 starts a transcation tx on db1 table1.Now inside tx i call a API getdata().This API creastes a new entitymanger em2 and return 1 ...

2. Multiple record deletion using hibernate    stackoverflow.com

what is the best way to delete multiple records using hibernate.My requirement is i am getting a list of UUIDs and based on this need to remove all records from the ...

3. How to delete all records in a JPA table?    coderanch.com

Thanks, but I'm still getting an error (see below). "DELETE FROM Employee e" does not work. "DELETE FROM Employee" does not work either. "DELETE FROM Employee e WHERE e.DTYPE LIKE '%' also does not work. Query :mrgreen: ataModifyQuery() Exception in thread "main" [TopLink Warning]: 2008.01.11 11:56:35.087--UnitOfWork(10132325)--Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build 36 (02/17/2007))): oracle.toplink.essentials.exceptions.DatabaseException Internal Exception: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column ...

4. Open JPA issue with deleting a record with timestamps    coderanch.com

Hello, We have an issue with Open JPA framework. We are using Oracle 10.2 database with Open JPA 1.0. We have a database table with a composite primary key. One of the keys is a timestamp. We have a requirement to delete rows from this table. When we do a remove() on this table, we encounter an error like " Caused ...

5. delete record in link table    forum.hibernate.org

Hi there, I am getting a trouble with hibernate mapping: I have 3 classes Doctor,Location and Event. In Doctor, I have a set of Location (many-to-many) relation,lazy=true. In Location, I have a set of Doctor(many-to-many) relation, lazy=true.Doctor and Location connect through the table DoctorLocation. In Event, I have a Doctor and a Location. When I try to update an Event, it ...

6. Delete records from database    forum.hibernate.org

7. Deleting records problems caused by data inconsistency    forum.hibernate.org

Author Message Swaffelaar Post subject: Deleting records problems caused by data inconsistency Posted: Tue Jun 15, 2010 8:22 am Newbie Joined: Mon Jun 14, 2010 3:04 pm Posts: 1 Hello This is the first time that I'm using Hibernate and I've been having a lot of troubles getting as far as I'm now. I managed to fix all the ...

8. Delete a record    forum.hibernate.org

Hi all, I'm new to NHibernate and having problems deleting a row from the repository. I keep getting the error: could not delete collection rows: [BOD.Entities.Hierarchy.Tag.TagImages#b051c925-c09f-46fb-a1e1-0079686e8b4c][SQL: UPDATE [TagImage] SET Tag_id = null WHERE Tag_id = @p0 AND tag_image_id = @p1] Here is my Code: ITagRepository tagRep = MyRepository(); BOD.Entities.Hierarchy.Tag tag = tagRep.Get(image.TagId); tag.TagImages.Remove(image); tagRep.DbContext.CommitChanges(); I have also tried using SaveOrUpdate() before ...

9. Thrown to the wolves. A simple delete of a record in the DB    forum.hibernate.org

Experience with this stuff none whatsoever. Basically thrown into the code base to support hibernate with nobody to ask questions of. So stepping through the code I can see alot of things occur but how, when, why hibernate functions how it does is beyond me at this point. Frustrated with this idea of having a technology doing something for me when ...





10. how to delete many record at once in hibernate?    forum.hibernate.org

11. delete a record from database    forum.hibernate.org

I have a one-to-many relation from PERSON and COMPANY TABLE and the following mapping in hbm in person.hbm I want to delete a contact from database. I read in documenation that the set tag must have cascade = "all-delete-orphan" and all the thing I have ...

12. records being deleted without the delete method    forum.hibernate.org

Hibernate version: 2.1.6 Mapping documents: Code between sessionFactory.openSession() and session.close(): public class HibernateUtil { /** All our threads can share one constant */ private static SessionFactory sessionFactory= null; /** the session of the current thread */ private static final ThreadLocal threadSession = new ThreadLocal(); /** one database transaction for all operations */ private static final ThreadLocal threadTransaction = new ThreadLocal(); /** ...

13. Deleting a record using Hibernate    forum.hibernate.org

So when deleting an object you have to load the object fully first? Is it not enough to create an instance of the object populating just the primary key field and then call session.delete() on that object. i.e. does Hibernate require that all fields in the object are fully populated before it can delete the corresponding db record? I have noticed ...

14. How to delete all data records in the db effeciently?    forum.hibernate.org

Hi, 1. Does any one know an efficient way to delete all data records of a table in the database efficiently by Hibernate 2.1.* and 3.*? 2. Does any one know an efficient way to copy all of the data records in a table to another table with the same table definition by Hibernate? Sincerely, Thomas

15. Updating parent deletes all the records in intermidiate tabl    forum.hibernate.org

The generated SQL (show_sql=true): Hibernate: update feed set FEED_NAME=? where ID=? Hibernate: delete from FEED_DEPENDENT_CONTACT where FEED_ID=? Hibernate: select feed0_.ID as ID0_, feed0_.FEED_NAME as FEED2_2_0_ from feed feed0_ where feed0_.ID=? Hibernate: select dependentc0_.FEED_ID as FEED1_1_, dependentc0_.elt as elt1_, dependentc1_.ID as ID0_, dependentc1_.DEPENDENT_CONTACT_NAME as DEPENDENT2_1_0_ from FEED_DEPENDENT_CONTACT dependentc0_ inner join dependent_contact dependentc1_ on dependentc0_.elt=dependentc1_.ID where dependentc0_.FEED_ID=?

16. deleting a bunch of records    forum.hibernate.org

Hi, I have been trying to delete a few records from the database using the following named query : [b] DELETE SEC_LOG WHERE TIME between convert(smalldatetime, ? ) and convert(smalldatetime, ? ) [/b] Now to call this query, i use [b]query.executeUpdate();[/b], but I get an exception : [b]java.lang.UnsupportedOperationException: Update queries only supported through HQL org.hibernate.impl.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:607)[/b]. Could anyone tell me ...





17. How to update,delete multiple records    forum.hibernate.org

18. deleting record using session.get()    forum.hibernate.org

Hi everybody, I have an issue, I want to delete a record from a table. Actually I want to delete the record from USER_PROJECTS table, the columns are project_id -- f.k to Project table, user_name-- f.k to User table. I have the POJOs like UserProjects.java UserPrjParam param, Project project, User userName --------------------- Project.java projectId, prjDesc . . . . ------------------------- User.java ...

19. delete a record from a value collection    forum.hibernate.org

So I have been struggle with this one for a while, I have a collection of composite element modeled as follows, ... according to the hibernate document, deleting a record from the findingStamps collection will result ...

20. Get the records that will be deleted on the deletion of reco    forum.hibernate.org

Package ------------ Hibernate 3.0 JDK 1.5 MSSQL Server 2000 Problem ----------- How to find the records which will be affected by the delete operation i.e. if a record in a table1 has to be deleted. How to find the records that will be deleted and the records that will be deleted on the deletion of the associated records In Short can ...

21. Deleting a record from One -to - Many Relationship    forum.hibernate.org

I have 2 database tables (A,B), relationship between those 2 tables is One record of table A has reference to many records of table B,(One - to - Many) When i load up my application it loads the records of table A to a drop-down list, from there if i select any record of table A, it loads the relavent records ...