oracle « MySQL « JPA Q&A

1. Impact of Code change in database migration MySql to Oracle. forum.hibernate.org

It depends on your application and data. We are using MySQL. When Oracle released a free developers version a few years ago we decided to test it just for fun. It didn't work out of the box, but none of the problems could be blamed on Hibernate. Below are a few of the problems we discovered. I am not 100% sure ...

2. MySQL DB with Hibernate Vs Oracle DB with hibernate forum.hibernate.org

3. can I use Hibernate to translate from oracle to mysql forum.hibernate.org

Dear friends, I am a newbie, I just know about Hibernate. so would anyone tell me if I can use Hibernate to translate database from oracle to mysql. I have a little homework, translating database from oracle to mysql. there is no big object (BLOB,CLOB) in the oracle database. so in my opinion, first, I should get the oracle DDL, and ...

4. can I use Hibernate to translate from oracle to mysql forum.hibernate.org

5. Data are not persisted to Oracle but to mySQL forum.hibernate.org

Hi all, I started evaluating Hibernate for our company. I ran into one problem which seems to be easy, but I can't find the fault right now. Maybe someone has a hint for me. I have some (simple) mapping class for a CD. My GUI has a button to add a CD to the database. The code works (now) without any ...

6. Error with oracle but not MySQL forum.hibernate.org

Hi, I have created a hibernate+ Spring layer for persistence. It contains 10 mapping files that maps 10 POJOs to 10 tables and these tables are created by hibernate. The entire setup along with the JUnit tests runs fine with mySQL. The minute I switched to oracle for some reason hibernate stagnates at oen point and I havent figured out why ...

7. Mysql t0 Oracle forum.hibernate.org

Hi, I have a J2EE application that uses hibernate with mysql database,now I want to run it with Oracle database with minimum changed to my code. I understand I have to change my cgf files for changing the dialect,but is there any way to restrict changes to hbm files and java file (mapping class,if required to change). for eg:- in mysql ...

8. How to change db from oracle to mysql with change the code? forum.hibernate.org

Full stack trace of any exception that occurs: 18:46:46,187 WARN [JDBCExceptionReporter] SQL Error: 1248, SQLState: 42000 18:46:46,187 ERROR [JDBCExceptionReporter] Every derived table must have its own alias 18:46:46,187 WARN [JDBCExceptionReporter] SQL Error: 1248, SQLState: 42000 18:46:46,187 ERROR [JDBCExceptionReporter] Every derived table must have its own alias 18:46:46,203 ERROR [MyEjbWrapper] MyEjb.exception.DaoEx ception: Unable to perform find