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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

Join query and hibernate 3

10 replies

Object Relational Mapping

Generate portable SQL statements

15 replies

Object Relational Mapping

Why use JPA over Hibernate?

11 replies

Object Relational Mapping

Hibernate and JPA Book Reccomendations

3 replies

JPA, one-to-many list is always null

13 replies

How to show Result from combined two tables by hibernate?

19 replies

Custom EclipseLink ExceptionHandler

0 replies

The debug process for PersistenceException

1 reply

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

Trying to use inner join in my class but it throws error

1 reply

Object Relational Mapping

what is JPA Persistence Unit

2 replies

Object Relational Mapping

java hibernate persisting classes that need data from super class?

1 reply

JPA error illegal argument exception

2 replies

hibernate 3 to hibernate 4

0 replies

How to ignore some database errors in a Hibernate Session

2 replies

How to convert java program with Hibernate3 to Hibernate 5.3.1?

0 replies

More »
Best this month

Join query and hibernate 3

10 replies

Custom EclipseLink ExceptionHandler

0 replies

The debug process for PersistenceException

1 reply

Trying to use inner join in my class but it throws error

1 reply

Object Relational Mapping

java hibernate persisting classes that need data from super class?

1 reply

hibernate 3 to hibernate 4

0 replies

How to convert java program with Hibernate3 to Hibernate 5.3.1?

0 replies

JpaObjectRetrievalFailureException

0 replies

More »
Object Relational Mapping Forum at JavaRanch

<meta attribute="visible" inherite="true"/> how to convert as a annotaions in hibernate

2 years ago 1 reply

Save and Delete Bidirectional Foreign key entities

2 years ago 16 replies

@Query and Angular Data Tables

2 years ago 1 reply

OneToMany design issue in JPA

2 years ago 1 reply

Odata service call error : object is not an instance of declaring class

2 years ago 0 replies

org.hibernate.MappingException: Unknown entity: com.hp.ExamRegister in a struts2 tiles integration

2 years ago 14 replies

Hibernate Joins Performance Issues

2 years ago 9 replies

hibernate lucene search

2 years ago 2 replies

Display info that belongs to logged in user and not all users

2 years ago 14 replies

JPA Drawbacks

2 years ago 6 replies

Do I need to use Hibernate or can I go with JDBC?

2 years ago 4 replies

Error when merging manyToMany relation in JPA

2 years ago 0 replies

javax.persistence.PersistenceException: Unable to locate persistence units

2 years ago 2 replies

No Persistence provider for EntityManager

2 years ago 1 reply

spring data jpa bidirectional mapping is not working

2 years ago 4 replies

JPA 2.1 NamedStoredProcedureQuery using

2 years ago 0 replies

Creating SessionFactory

2 years ago 0 replies

angularjs save operation for foregin key tables

2 years ago 1 reply

Delete Bidirectional many to one Entities

2 years ago 17 replies

Hibernate annotation referencedcolumnname doesnt work (referencedcolumnname is assigned primary key)

2 years ago 0 replies

HQL Query Problem

2 years ago 2 replies

@SQLInsert(CreateUpdateDelete operations) statement in Hibernate

2 years ago 1 reply

Nested select and merge in OpenJPA

2 years ago 1 reply

Certification Error: common name of the URL doest not match the common name of the Certifate

2 years ago 0 replies

Does Hibernate check dirty objects with database or only with session?

2 years ago 4 replies

one to one mapping using primary key join column question

2 years ago 0 replies

How can i write a criteria to sum of values in the subquery

2 years ago 2 replies

Modifying Hibernate object after fetching data from Sql

2 years ago 1 reply

Unobtrusive, not transparent

2 years ago 0 replies

Should I use many to one unidirectional mapping for this or bidirectional one to many?

2 years ago 10 replies

JPA Criteria API and 'in' keyword

2 years ago 0 replies

achieve the same using one to many bidirectional as for many to one unidirectional

3 years ago 0 replies

is there a case in hibernate when cascading should not be used?

3 years ago 5 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

Join query and hibernate 3

Generate portable SQL statements

Why use JPA over Hibernate?

Hibernate and JPA Book Reccomendations

JPA, one-to-many list is always null

How to show Result from combined two tables by hibernate?

Custom EclipseLink ExceptionHandler

The debug process for PersistenceException

JEE CRUD Application

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

Trying to use inner join in my class but it throws error

what is JPA Persistence Unit

java hibernate persisting classes that need data from super class?

JPA error illegal argument exception

hibernate 3 to hibernate 4

How to ignore some database errors in a Hibernate Session

How to convert java program with Hibernate3 to Hibernate 5.3.1?

Best this month

Join query and hibernate 3

Custom EclipseLink ExceptionHandler

The debug process for PersistenceException

Trying to use inner join in my class but it throws error

java hibernate persisting classes that need data from super class?

hibernate 3 to hibernate 4

How to convert java program with Hibernate3 to Hibernate 5.3.1?

JpaObjectRetrievalFailureException

Object Relational Mapping Forum at JavaRanch

<meta attribute="visible" inherite="true"/> how to convert as a annotaions in hibernate

Save and Delete Bidirectional Foreign key entities

@Query and Angular Data Tables

OneToMany design issue in JPA

Odata service call error : object is not an instance of declaring class

org.hibernate.MappingException: Unknown entity: com.hp.ExamRegister in a struts2 tiles integration

Hibernate Joins Performance Issues

hibernate lucene search

Display info that belongs to logged in user and not all users

JPA Drawbacks

Do I need to use Hibernate or can I go with JDBC?

Error when merging manyToMany relation in JPA

javax.persistence.PersistenceException: Unable to locate persistence units

No Persistence provider for EntityManager

spring data jpa bidirectional mapping is not working

JPA 2.1 NamedStoredProcedureQuery using

Creating SessionFactory

angularjs save operation for foregin key tables

Delete Bidirectional many to one Entities

Hibernate annotation referencedcolumnname doesnt work (referencedcolumnname is assigned primary key)

HQL Query Problem

@SQLInsert(CreateUpdateDelete operations) statement in Hibernate

Nested select and merge in OpenJPA

Certification Error: common name of the URL doest not match the common name of the Certifate

Does Hibernate check dirty objects with database or only with session?

one to one mapping using primary key join column question

How can i write a criteria to sum of values in the subquery

Modifying Hibernate object after fetching data from Sql

Unobtrusive, not transparent

Should I use many to one unidirectional mapping for this or bidirectional one to many?

JPA Criteria API and 'in' keyword

achieve the same using one to many bidirectional as for many to one unidirectional

is there a case in hibernate when cascading should not be used?

Databases