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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

Object Relational Mapping

No persistence provider for EntityManager for Hibernate in Maven

2 replies 2

Problem in building hibernate SessionFactory

34 replies 4

Object Relational Mapping

Types of SQL injections

5 replies 1

Object Relational Mapping

Hibernate Spring repository returns new object and therefore breaks references between objects

1 reply 3

Hibernate mapping problem

5 replies 1

Object Relational Mapping

book is not mapped - hibernate issue

1 reply 1

Having Trouble Setting Up Hibernate ORM 5.2.2 in Eclipse

3 replies 1

Even with the class defined, i get the error: org.hibernate.MappingException: Unknown entity

3 replies 1

* Welcome Thorben Janssen

11 replies 1

ManyToMany mapping relationship table is blank (Hibernate newbie)

2 replies 1

Object Relational Mapping

Suggest For Books Please

6 replies

Object Relational Mapping

Do people still use plain JDBC to do many to many mapping ?

6 replies

Object Relational Mapping

JPA cannot persist cascading related entities

7 replies

Object Relational Mapping

getting Invalid column type: getInt not implemented for class oracle.jdbc.driver.T4CRowidAccessor

8 replies 1

What's different between mapping types in Hibernate?

4 replies

How to exclude some indexed items in Hibernate List

3 replies

Is it good to add JPA just to do the insertion of Bridging table ?

2 replies

Object Relational Mapping

how to know what is mysql username and password ?

1 reply

What are the performant way to connect to a database?

1 reply

Best noSQL database to embed into a Java application?

3 replies

More »
Best this month

Is it good to add JPA just to do the insertion of Bridging table ?

2 replies

Object Relational Mapping

how to know what is mysql username and password ?

1 reply

What are the performant way to connect to a database?

1 reply

How do you Map String Array to JPA ?

4 replies 1

why use c3p0 ?

1 reply

Is hibernate reverse engineering compulsory ?

1 reply

Is there any query to list all the tables including certain characters in table name for Oracle ?

2 replies

HibernateDaoSupport is deprecated in spring 3 but present in spring 4

0 replies

Need to know about Devops

0 replies

Is hibernate.cfg.xml still needed when I am also using JPA annotation ?

0 replies

-Configured server platform: org.eclipse.persistence.platform.server.NoServerPlatform and error

0 replies

More »
Object Relational Mapping Forum at JavaRanch

Hibernate Tips: Migration of Hibernate\MySQL to Hibernate\Azure SQL

4 months ago 4 replies

Where do I get the entityManagerFactory?

4 months ago 3 replies

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

4 months ago 4 replies

hibernate object reference error

4 months ago 1 reply

Caching VS Performance improvements

4 months ago 1 reply

Unable to build entity manager factory

4 months ago 2 replies

Hibernate Tips: multitenancy and heterogeneous databases?

4 months ago 1 reply

* Winners: Hibernate Tips

4 months ago 0 replies 1

Hibernate tips: inner table

4 months ago 2 replies

Hibernate Tips: Migration

4 months ago 0 replies

Hibernate Tips: Usage

4 months ago 4 replies

Hibernate Tips: performance tuning

4 months ago 3 replies

* Welcome Thorben Janssen

4 months ago 11 replies 1

Hibernate Tips: Version?

4 months ago 2 replies

Hibernate Tips: A much needed book

4 months ago 2 replies

Hibernate Tips: Performance

4 months ago 1 reply

Hibernate Tips: stored procs

4 months ago 2 replies

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

4 months ago 0 replies

Problem in building hibernate SessionFactory

4 months ago 34 replies 4

Hibernate Tips: Replacing hbm files with annotations

4 months ago 0 replies

Hibernate when and when not to use the second level cache

4 months ago 2 replies

Writing bulk data and improving runtime

4 months ago 2 replies

Hibernate Tips: common mistakes

4 months ago 0 replies

cant understand the send table ie filter_filters

4 months ago 10 replies 3

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

4 months ago 2 replies

A java problem related to shopping mall

4 months ago 2 replies

javax.persistence.NoResultException

4 months ago 1 reply

No persistence provider for EntityManager for Hibernate in Maven

4 months ago 2 replies 2

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

4 months ago 0 replies

Hibernate 4 Id generation

4 months ago 4 replies 1

Upgrading hibernate from 3.6 to 5.0.9

5 months ago 0 replies

Hibernate: MappingNotFoundException

5 months ago 4 replies

Please help with HQL

5 months ago 0 replies

createQuery not working but createNativeQuery works

5 months ago 8 replies

Best noSQL database to embed into a Java application?

5 months ago 3 replies
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Object Relational Mapping

Best this year

No persistence provider for EntityManager for Hibernate in Maven

Problem in building hibernate SessionFactory

Types of SQL injections

Hibernate Spring repository returns new object and therefore breaks references between objects

Hibernate mapping problem

book is not mapped - hibernate issue

Having Trouble Setting Up Hibernate ORM 5.2.2 in Eclipse

Even with the class defined, i get the error: org.hibernate.MappingException: Unknown entity

* Welcome Thorben Janssen

ManyToMany mapping relationship table is blank (Hibernate newbie)

Suggest For Books Please

Do people still use plain JDBC to do many to many mapping ?

JPA cannot persist cascading related entities

getting Invalid column type: getInt not implemented for class oracle.jdbc.driver.T4CRowidAccessor

What's different between mapping types in Hibernate?

How to exclude some indexed items in Hibernate List

Is it good to add JPA just to do the insertion of Bridging table ?

how to know what is mysql username and password ?

What are the performant way to connect to a database?

Best noSQL database to embed into a Java application?

Best this month

Is it good to add JPA just to do the insertion of Bridging table ?

how to know what is mysql username and password ?

What are the performant way to connect to a database?

How do you Map String Array to JPA ?

why use c3p0 ?

Is hibernate reverse engineering compulsory ?

Is there any query to list all the tables including certain characters in table name for Oracle ?

HibernateDaoSupport is deprecated in spring 3 but present in spring 4

Need to know about Devops

Is hibernate.cfg.xml still needed when I am also using JPA annotation ?

-Configured server platform: org.eclipse.persistence.platform.server.NoServerPlatform and error

Object Relational Mapping Forum at JavaRanch

Hibernate Tips: Migration of Hibernate\MySQL to Hibernate\Azure SQL

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?

Databases