1. hibernate update JPA foreign key stackoverflow.comMy jpa looks like below |
2. How do you update a foreign key value directly via Hibernate? stackoverflow.comI have a couple of objects that are mapped to tables in a database using Hibernate, BatchTransaction and Transaction. BatchTransaction's table (batch_transactions) has a foreign key reference to transactions, named transaction_id. In ... |
3. how to update primary key in java Hibernate stackoverflow.comI am working on Mvc architecture,I have pojo object i want change primary key please can you help me Primary key is ... |
4. Hibernate Update set of foreign keys forum.hibernate.orgHello, I am new to Hibernate and I really am enjoying it so far. I do have a question though. So if you have a table A and table B and there is a one-to-many relationship from A to B. So there is a foreign key in B that links to A's primary key. If I get an object in A ... |
5. Adding and Updating a data from a table with two primary key forum.hibernate.org |
6. Hibernate and Primary Key updates forum.hibernate.orgWhat is the best practice when trying to update a primary key value and using Hibernate? Here is an example: Legacy Table: Users Primary Key: username - varchar(32) (other columns not necessary for this example) The username 'fredd' is spelled wrong... I would like to change it to 'fredm'. In SQL... I can just use an UPDATE statement. What is the ... |
7. Can I update an object that has no primary key in table forum.hibernate.orgHi friends, I have a problem in updating a row that has no primary key.But I need to map one property as a primary key in my class which is mapped to that table other wise I get an error while generating mapping file (by running ant). Now there is no problem while saving, but when I try to update it ... |
8. Update an assigned primary key forum.hibernate.orgI am lost going throuh the forum, hence please forgive if this question is a repeat. I have table Foo whose identifier is an assigned value. If there is a row in the table Foo like 5,'test' and I want to change it to 8,'test' Can I update the identifier value? Example: session = HibernateUtil.currentSession(); Foo foo = (Foo) session.load(Foo.class,new Integer(5)); ... |
9. How to update the primary key on a master table? forum.hibernate.orgelango wrote: Hello, can i use "update tablename set sn='newValue' where sn='oldValue' as a query string in hibernate to update my master table's primary key that should also update the child tables. I have a master table that is linked to 2 child tables. But in my hibernate map, i have only master and child1 linked using many-to-one. The other child ... |
10. Can we Update Primary Key in Hibernate forum.hibernate.orgNo you can't using Hibernate. Read the section on object identity in the Hibernate in action book. You need to be asking yourself why you want to update the primary key. Have you mapped the primary key to a key with business meaning that is mutable? If you absolutely have to change the primary key use JDBC and make sure that ... |
11. Updating tables without without a primary key... forum.hibernate.orgI am writing a hibernate wrapper around a client's database. This one particular table does not have a primary key. This is the SQL that created the table CREATE TABLE [CONFIG] ( [Name] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL , [Value] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL , [LastModified] [datetime] NULL ) ON [PRIMARY] GO I used Middlegen to create my mapping ... |
12. Update based on key only forum.hibernate.orgI'm new to Hibernate, so I'm sure this is a simple question... I'm using Hibernate version 3.1.2. I have a simple Person object which contains three fields: id, name and age. Id is primary key. This Person object maps to a Person table in the db which contains the same fields. I want to update the age of an existing person ... |
13. Updating a primary key forum.hibernate.org |
14. Updating primary key forum.hibernate.orgHalcon, Can you please direct me to the post or atleast the search string for it? My efforts to find the post (before posting mine) have been fruitless. I might have missed it because I'm not a regular around here. You're definitely making sense with regards the relational perspective. But that's the way the datamodel (out of my hands) has been ... |
15. individual updates for FK on Sets forum.hibernate.orgHello, I am relatively new to hibernate and have a question around optimising performance around the cascade save of new entity collections. I have a simple one-to-many parent child relationship of objects. On save both the parent and all of its children are made persistent in one go. I have a custom id generator for both parent and child that basically ... |
16. Update primary key problem forum.hibernate.orgI have table with a composite primary key (which are FK to 2 other tables). So C has a primary key composed of A.id and B.id. And i need to update the B component from the primary key of C. I tried with update, but it does not work. I tried with deleting the record and creating it again, but when ... |
17. how to do "on duplicated key update" in hibernate forum.hibernate.orgadamgibbons Post subject: Posted: Sat Apr 28, 2007 8:13 am Senior Joined: Sat Apr 21, 2007 11:01 pm Posts: 144 Hibernate HQL is a lot more restrictive that SQL. A really good page to see all the things you can do with HQL is here: http://www.hibernate.org/hib_docs/refer ... ryhql.html If you really want to do what you want in HQL, ... |
18. Update Primary Key and Foreign key forum.hibernate.orgnope. The primary key is what defines a record. If you change it you now have for the database a different record. Most databases in fact won't allow you to change the primary key of a record for that very reason, it makes no sense and would easily lead to database corruption. |
19. problem with updating (primary key and unique) forum.hibernate.orgHi, i am not very experienced using Hibernate, so please forgive me if my question is stupid ;) I've got a problem with updating the record (one field is a primary key and the second is unique) in the same transaction: because i want to update primary key, i have to delete the old record(object) and create a new one. but ... |
20. How to update the primary key value in db using hibernate forum.hibernate.orgHi, I am using spring+hibernate+jboss+oracle db I am trying to change the primary key value of one column of table. I am sure that i am trying to insert the value is currently not there in the db.But I am getting this exception while trying to saveOrUpdate. org.springframework.orm.hibernate3.HibernateSystemException: identifier of an instance of com.nbs.ebb.persistence.Phase altered from 7 to 999998; nested exception ... |
21. How can i update foreign key? forum.hibernate.orgHi, How can i update foreign key (CITY) in TableA without updating TableB? Anybody help me? My classes and mappings as flow; I have tow classes like as A and B. Tables are Create TableA (HOTSPOT_ID(PK),..., CITY(FK for Table B)) Create TableB (CITY(PK),....) Association is many-to-one class A { B b; ..getB ..setB } class B { ..... } and my ... |