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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

This class has a composite primary key. It must use an ID class.

22 replies 2

Object Relational Mapping

which framework is being used most in Persistence Layer?

13 replies

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

3 replies 2

Object Relational Mapping

Flush old data and make query for a new data

5 replies

Object Relational Mapping

MyBatis

11 replies

Squeezing Four HQL Queries Into One

14 replies

int vs Integer for JPA entity's Id field?

10 replies

Object Relational Mapping

How to improve select query speed on Spring with Hibernate and PostgreSQL?

14 replies

Object Relational Mapping

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

9 replies

JPA Criteria API - unintentional CROSS JOIN

4 replies

Object Relational Mapping

HQL Hibernate INNER JOIN SUBQuery

6 replies

Hibernate does not persist my database

7 replies

CSV File returns empty values

3 replies 1

Dealing with database using hibernate

1 reply

create to generate table through hibernate

2 replies 1

hibernate and JPA (cross post from stack exchange)

6 replies

Object Relational Mapping

Question on database design: It's really a hierarchical design

4 replies

Join query and hibernate 3

10 replies

The debug process for PersistenceException

5 replies

JPA foreign key

1 reply

More »
Best this month

JPA Criteria API - unintentional CROSS JOIN

4 replies

Dealing with database using hibernate

1 reply

JPA foreign key

1 reply

Object Relational Mapping

Spring Hibernate Hikari CP

0 replies

Object Relational Mapping

JPA same sequence for two applications not working

0 replies

Primary key generation in Hibernate

0 replies

More »
Object Relational Mapping Forum at JavaRanch

How Hibernate returns object

7 years ago 3 replies

org.hibernate.exception. SQLGrammarException

7 years ago 6 replies

Could not synchronize database state with session Unexpected row count: 0 expected: 1

7 years ago 3 replies

Hibernate Query Caching - Why the misses?

7 years ago 4 replies

How to start hibernating?

7 years ago 6 replies

A good Hibernate book or tutorial

7 years ago 6 replies

Why Lazy loading not possible for persistent classes marked final

7 years ago 2 replies

what is Field Access vs. Property Access in JPA ? please give example in detail

7 years ago 2 replies

Fetch SQL Query(under execution) from application server (executing EJB 3 entity bean).

7 years ago 1 reply

Hint on how to represent jave Object with two relation tables

7 years ago 1 reply

Hibernate Dialect Error

7 years ago 1 reply

Naming child-parent relation with JPA Annotation

7 years ago 0 replies

Hibernate - Getting null exception during delete cascade

7 years ago 0 replies

Any beginner tutorial for Eclipse users ?

7 years ago 1 reply

Design issue: caching hierarchical tree of data, read-mostly

7 years ago 0 replies

Retrieving clean Entity from EntityManager

7 years ago 0 replies

Partitioning in Hibernate

7 years ago 3 replies

JPA Query and HQL

7 years ago 3 replies

JPA:I get cannot simultaneously fetch multiple bags when >=2 enteties FetchType.EAGER

7 years ago 7 replies

How could I map this situation: ManyToMany with own PK

7 years ago 4 replies

Problem with query getResultList object

7 years ago 1 reply

org.hibernate.StaleStateException:

7 years ago 0 replies

Hibernate transation manager (engine)

7 years ago 0 replies

Using dozer for copying java objects

7 years ago 0 replies

Hibernate: read-only on @Column in embedded ID composite key classes mapping exception - bug?

7 years ago 0 replies

hilo generator

7 years ago 0 replies

how to insert data in stored procedure from hibernate?

7 years ago 2 replies

JPA - need help with query

7 years ago 5 replies

Hibernate tool code generation org.hibernate.MappingException: Foreign key

8 years ago 3 replies

HOLA

8 years ago 0 replies

Bytecode instrumentation, Entites and Java EE

8 years ago 0 replies

Is it possible to get count from a sessionFactory query

8 years ago 1 reply

Hibernate, Inheritance and storing as file

8 years ago 0 replies

SQLRestrictions

8 years ago 1 reply

Bean Validation with Hibernate 3.6 in GlassFish 3.0.1

8 years ago 1 reply
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Object Relational Mapping

Best this year

This class has a composite primary key. It must use an ID class.

which framework is being used most in Persistence Layer?

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

Flush old data and make query for a new data

MyBatis

Squeezing Four HQL Queries Into One

int vs Integer for JPA entity's Id field?

How to improve select query speed on Spring with Hibernate and PostgreSQL?

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

JPA Criteria API - unintentional CROSS JOIN

HQL Hibernate INNER JOIN SUBQuery

Hibernate does not persist my database

CSV File returns empty values

Dealing with database using hibernate

create to generate table through hibernate

hibernate and JPA (cross post from stack exchange)

Question on database design: It's really a hierarchical design

Join query and hibernate 3

The debug process for PersistenceException

JPA foreign key

Best this month

JPA Criteria API - unintentional CROSS JOIN

Dealing with database using hibernate

JPA foreign key

Spring Hibernate Hikari CP

JPA same sequence for two applications not working

Primary key generation in Hibernate

Object Relational Mapping Forum at JavaRanch

How Hibernate returns object

org.hibernate.exception. SQLGrammarException

Could not synchronize database state with session Unexpected row count: 0 expected: 1

Hibernate Query Caching - Why the misses?

How to start hibernating?

A good Hibernate book or tutorial

Why Lazy loading not possible for persistent classes marked final

what is Field Access vs. Property Access in JPA ? please give example in detail

Fetch SQL Query(under execution) from application server (executing EJB 3 entity bean).

Hint on how to represent jave Object with two relation tables

Hibernate Dialect Error

Naming child-parent relation with JPA Annotation

Hibernate - Getting null exception during delete cascade

Any beginner tutorial for Eclipse users ?

Design issue: caching hierarchical tree of data, read-mostly

Retrieving clean Entity from EntityManager

Partitioning in Hibernate

JPA Query and HQL

JPA:I get cannot simultaneously fetch multiple bags when >=2 enteties FetchType.EAGER

How could I map this situation: ManyToMany with own PK

Problem with query getResultList object

org.hibernate.StaleStateException:

Hibernate transation manager (engine)

Using dozer for copying java objects

Hibernate: read-only on @Column in embedded ID composite key classes mapping exception - bug?

hilo generator

how to insert data in stored procedure from hibernate?

JPA - need help with query

Hibernate tool code generation org.hibernate.MappingException: Foreign key

HOLA

Bytecode instrumentation, Entites and Java EE

Is it possible to get count from a sessionFactory query

Hibernate, Inheritance and storing as file

SQLRestrictions

Bean Validation with Hibernate 3.6 in GlassFish 3.0.1

Databases