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Object Relational Mapping

JPA, JDO, Hibernate, and other such new fangled database technologies

This forum is for mapping frameworks. For questions about SQL itself, we recommend the JDBC forum or the interactive JDBC FAQ! We also have a Hibernate FAQ
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Best this year

How do you Map String Array to JPA ?

10 replies 1

Can you give me real time scenario when to use Procedure, Function, Cursor, Trigger?

3 replies 2

Object Relational Mapping

MySQL table is there but it says it doesn't exist

9 replies

Object Relational Mapping

Generate portable SQL statements

15 replies

Object Relational Mapping

Why use JPA over Hibernate?

11 replies

JPA, one-to-many list is always null

13 replies

How to show Result from combined two tables by hibernate?

19 replies

Object Relational Mapping

JEE CRUD Application

2 replies

Object Relational Mapping

org.apache.tomcat.dbcp cannot be cast to oracle.jdbc.OracleConnection when using eclipselink JPA

4 replies

Object Relational Mapping

what is JPA Persistence Unit

2 replies

JPA error illegal argument exception

2 replies

How to ignore some database errors in a Hibernate Session

2 replies

mixture of annotation and xml based hibernate code

1 reply

Object Relational Mapping

OpenJPA to JavaDB configuration (TomEE)

7 replies

SQL: case sensitive matching of records.

1 reply

Object Relational Mapping

Hibernate Serialization Issue

3 replies

Inexplicable ConstraintViolationException

14 replies

hibernate and all-delete-orphan

1 reply

criteria API in Hibernate and Java

2 replies

EclipseLink help required (Pool not open)

0 replies

More »
Best this month

JPA error illegal argument exception

2 replies

mixture of annotation and xml based hibernate code

1 reply

SQL: case sensitive matching of records.

1 reply

More »
Object Relational Mapping Forum at JavaRanch

Where do I get the entityManagerFactory?

1 year ago 3 replies

can someone help me understand why one transient object can be saved, but not two together ?

1 year ago 4 replies

hibernate object reference error

1 year ago 1 reply

Caching VS Performance improvements

1 year ago 1 reply

Unable to build entity manager factory

1 year ago 2 replies

Hibernate Tips: multitenancy and heterogeneous databases?

1 year ago 1 reply

* Winners: Hibernate Tips

1 year ago 0 replies 1

Hibernate tips: inner table

1 year ago 2 replies

Hibernate Tips: Migration

1 year ago 0 replies

Hibernate Tips: Usage

1 year ago 4 replies

Hibernate Tips: performance tuning

1 year ago 3 replies

* Welcome Thorben Janssen

1 year ago 11 replies 1

Hibernate Tips: Version?

1 year ago 2 replies

Hibernate Tips: A much needed book

1 year ago 2 replies

Hibernate Tips: Performance

1 year ago 1 reply

Hibernate Tips: stored procs

1 year ago 2 replies

Hibernate Tips: Pitfalls/Difficulties in using Hibernate as ORM framework

1 year ago 0 replies

Problem in building hibernate SessionFactory

1 year ago 34 replies 4

Hibernate Tips: Replacing hbm files with annotations

1 year ago 0 replies

Hibernate when and when not to use the second level cache

1 year ago 2 replies

Writing bulk data and improving runtime

1 year ago 2 replies

Hibernate Tips: common mistakes

1 year ago 0 replies

cant understand the send table ie filter_filters

1 year ago 10 replies 3

Do we create our own tables in or do we let Hibernate do it for us?

1 year ago 2 replies

A java problem related to shopping mall

1 year ago 2 replies

javax.persistence.NoResultException

1 year ago 1 reply

No persistence provider for EntityManager for Hibernate in Maven

1 year ago 2 replies 2

Hibernate how to add a new row to a table with a foreign key

1 year ago 0 replies

Hibernate 4 Id generation

1 year ago 4 replies 1

Upgrading hibernate from 3.6 to 5.0.9

1 year ago 0 replies

Hibernate: MappingNotFoundException

1 year ago 4 replies

Please help with HQL

1 year ago 0 replies

createQuery not working but createNativeQuery works

1 year ago 8 replies

Best noSQL database to embed into a Java application?

1 year ago 3 replies

CORBA IDL having more than one interface

1 year ago 0 replies
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Object Relational Mapping

Best this year

How do you Map String Array to JPA ?

Can you give me real time scenario when to use Procedure, Function, Cursor, Trigger?

MySQL table is there but it says it doesn't exist

Generate portable SQL statements

Why use JPA over Hibernate?

JPA, one-to-many list is always null

How to show Result from combined two tables by hibernate?

JEE CRUD Application

org.apache.tomcat.dbcp cannot be cast to oracle.jdbc.OracleConnection when using eclipselink JPA

what is JPA Persistence Unit

JPA error illegal argument exception

How to ignore some database errors in a Hibernate Session

mixture of annotation and xml based hibernate code

OpenJPA to JavaDB configuration (TomEE)

SQL: case sensitive matching of records.

Hibernate Serialization Issue

Inexplicable ConstraintViolationException

hibernate and all-delete-orphan

criteria API in Hibernate and Java

EclipseLink help required (Pool not open)

Best this month

JPA error illegal argument exception

mixture of annotation and xml based hibernate code

SQL: case sensitive matching of records.

Object Relational Mapping Forum at JavaRanch

Where do I get the entityManagerFactory?

can someone help me understand why one transient object can be saved, but not two together ?

hibernate object reference error

Caching VS Performance improvements

Unable to build entity manager factory

Hibernate Tips: multitenancy and heterogeneous databases?

* Winners: Hibernate Tips

Hibernate tips: inner table

Hibernate Tips: Migration

Hibernate Tips: Usage

Hibernate Tips: performance tuning

* Welcome Thorben Janssen

Hibernate Tips: Version?

Hibernate Tips: A much needed book

Hibernate Tips: Performance

Hibernate Tips: stored procs

Hibernate Tips: Pitfalls/Difficulties in using Hibernate as ORM framework

Problem in building hibernate SessionFactory

Hibernate Tips: Replacing hbm files with annotations

Hibernate when and when not to use the second level cache

Writing bulk data and improving runtime

Hibernate Tips: common mistakes

cant understand the send table ie filter_filters

Do we create our own tables in or do we let Hibernate do it for us?

A java problem related to shopping mall

javax.persistence.NoResultException

No persistence provider for EntityManager for Hibernate in Maven

Hibernate how to add a new row to a table with a foreign key

Hibernate 4 Id generation

Upgrading hibernate from 3.6 to 5.0.9

Hibernate: MappingNotFoundException

Please help with HQL

createQuery not working but createNativeQuery works

Best noSQL database to embed into a Java application?

CORBA IDL having more than one interface

Databases