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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

Best this year

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

22 replies 2

Object Relational Mapping

Is composite-primary key the best solution - Hibernate Spring

7 replies

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

3 replies 2

Integer versus int

4 replies

Error in persistence and other files

8 replies 1

Can we have validations like this if we are not using JPA ?

10 replies

Multiple representations of the same entity are are being merged

4 replies

Is there a way to create a Conditional insert with JPA

6 replies

Error on @Entity

2 replies

Object Relational Mapping

Flush old data and make query for a new data

5 replies

Entity is not mapped

3 replies

Object Relational Mapping

MyBatis

11 replies

Hibernate ENVERS AuditQuery returns only parts of the entity

3 replies

Squeezing Four HQL Queries Into One

14 replies

Problem with hibernate-configuration and session

2 replies

SessionHolder cannot be cast to EntityManagerHolder problem

2 replies

Could not load minecraft plugin: NoClassDefFoundError

2 replies

hibernate : data layer separate from object layer

2 replies

Object Relational Mapping

Deleting a Many to Many entry while keeping both objects in the database

1 reply

Hibernate sessionFactory is null

3 replies

More »
Best this month

Object Relational Mapping

Is composite-primary key the best solution - Hibernate Spring

7 replies

Multiple representations of the same entity are are being merged

4 replies

Problem with hibernate-configuration and session

2 replies

SessionHolder cannot be cast to EntityManagerHolder problem

2 replies

Could not load minecraft plugin: NoClassDefFoundError

2 replies

hibernate : data layer separate from object layer

2 replies

Object Relational Mapping

Deleting a Many to Many entry while keeping both objects in the database

1 reply

orphan child for Many To Many mappings

0 replies

Hibernate one to many mapping with foreign key association

0 replies

More »
Object Relational Mapping Forum at JavaRanch

Hibernate/C3PO Not Automatically Restoring Lost Connections

7 months ago 1 reply

Complex MyBatis Mapping - Annotations vs XML File

7 months ago 2 replies

Web Services

java]org.hibernate.hql.internal.ast.QuerySyntaxException: Path expected for join!

7 months ago 2 replies

Microsoft Sql + Hibernate 3.0 + jboss 7 executeUpdate not reflecting

7 months ago 1 reply

Hibernate ResultTransformer returning null values for all columns except @Id column

7 months ago 1 reply

int vs Integer for JPA entity's Id field?

7 months ago 10 replies

Hibernate Delete Not Null Columns

7 months ago 4 replies

Experiencing Some difficulties with Hibernate

7 months ago 0 replies

Books

Hibernate and JPA Book Reccomendations

8 months ago 3 replies

hibernate 3 to hibernate 4

8 months ago 0 replies

Custom EclipseLink ExceptionHandler

8 months ago 0 replies

Join query and hibernate 3

8 months ago 10 replies

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

8 months ago 1 reply

How to convert java program with Hibernate3 to Hibernate 5.3.1?

8 months ago 0 replies

JDBC and Relational Databases

java hibernate persisting classes that need data from super class?

8 months ago 1 reply

JpaObjectRetrievalFailureException

8 months ago 0 replies

Java in General

FK not feeded by JPA

8 months ago 0 replies

mixture of annotation and xml based hibernate code

9 months ago 1 reply

JPA error illegal argument exception

9 months ago 2 replies

SQL: case sensitive matching of records.

9 months ago 1 reply

hibernate and all-delete-orphan

9 months ago 1 reply

EclipseLink help required (Pool not open)

9 months ago 0 replies

EJB and other Jakarta/Java EE Technologies

JEE CRUD Application

9 months ago 2 replies

Java in General

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibern

10 months ago 6 replies

PL/SQL Variable parameters in procedure

10 months ago 0 replies

Take the Hassle out of MySQL and MariaDB Documenting with All-New dbForge Documenter for MySQL

10 months ago 0 replies

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

10 months ago 3 replies 2

How to ignore some database errors in a Hibernate Session

10 months ago 2 replies

Other JSRs

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

10 months ago 4 replies

Reg Hibernate Cache

11 months ago 0 replies 1

criteria API in Hibernate and Java

11 months ago 2 replies

Hibernate SpringBoot CrudRepository Delete is not working

11 months ago 1 reply

Hibernate Serialization Issue

11 months ago 3 replies

Problem with Hql Update

1 year ago 7 replies

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

1 year ago 9 replies
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Object Relational Mapping

Best this year

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

Is composite-primary key the best solution - Hibernate Spring

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

Integer versus int

Error in persistence and other files

Can we have validations like this if we are not using JPA ?

Multiple representations of the same entity are are being merged

Is there a way to create a Conditional insert with JPA

Error on @Entity

Flush old data and make query for a new data

Entity is not mapped

MyBatis

Hibernate ENVERS AuditQuery returns only parts of the entity

Squeezing Four HQL Queries Into One

Problem with hibernate-configuration and session

SessionHolder cannot be cast to EntityManagerHolder problem

Could not load minecraft plugin: NoClassDefFoundError

hibernate : data layer separate from object layer

Deleting a Many to Many entry while keeping both objects in the database

Hibernate sessionFactory is null

Best this month

Is composite-primary key the best solution - Hibernate Spring

Multiple representations of the same entity are are being merged

Problem with hibernate-configuration and session

SessionHolder cannot be cast to EntityManagerHolder problem

Could not load minecraft plugin: NoClassDefFoundError

hibernate : data layer separate from object layer

Deleting a Many to Many entry while keeping both objects in the database

orphan child for Many To Many mappings

Hibernate one to many mapping with foreign key association

Object Relational Mapping Forum at JavaRanch

Hibernate/C3PO Not Automatically Restoring Lost Connections

Complex MyBatis Mapping - Annotations vs XML File

java]org.hibernate.hql.internal.ast.QuerySyntaxException: Path expected for join!

Microsoft Sql + Hibernate 3.0 + jboss 7 executeUpdate not reflecting

Hibernate ResultTransformer returning null values for all columns except @Id column

int vs Integer for JPA entity's Id field?

Hibernate Delete Not Null Columns

Experiencing Some difficulties with Hibernate

Hibernate and JPA Book Reccomendations

hibernate 3 to hibernate 4

Custom EclipseLink ExceptionHandler

Join query and hibernate 3

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

How to convert java program with Hibernate3 to Hibernate 5.3.1?

java hibernate persisting classes that need data from super class?

JpaObjectRetrievalFailureException

FK not feeded by JPA

mixture of annotation and xml based hibernate code

JPA error illegal argument exception

SQL: case sensitive matching of records.

hibernate and all-delete-orphan

EclipseLink help required (Pool not open)

JEE CRUD Application

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibern

PL/SQL Variable parameters in procedure

Take the Hassle out of MySQL and MariaDB Documenting with All-New dbForge Documenter for MySQL

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

How to ignore some database errors in a Hibernate Session

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

Reg Hibernate Cache

criteria API in Hibernate and Java

Hibernate SpringBoot CrudRepository Delete is not working

Hibernate Serialization Issue

Problem with Hql Update

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

Databases