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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

int vs Integer for JPA entity's Id field?

2 replies

The debug process for PersistenceException

3 replies

Custom EclipseLink ExceptionHandler

0 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

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

Experiencing Some difficulties with Hibernate

0 replies

JPA error illegal argument exception

2 replies

hibernate 3 to hibernate 4

0 replies

More »
Best this month

Join query and hibernate 3

10 replies

int vs Integer for JPA entity's Id field?

2 replies

The debug process for PersistenceException

3 replies

Custom EclipseLink ExceptionHandler

0 replies

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

Experiencing Some difficulties with Hibernate

0 replies

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

ProjectionList hibernate Criteria

8 months ago 3 replies

How to create mysql table with huge number of columns & rows by optimized way using Hibernate?

8 months ago 3 replies

Books

Suggest For Books for Hibernate, Spring and Struts

8 months ago 10 replies

No connection specified for project. No database-specific validation will be performed

8 months ago 1 reply

JPA in wildfly 10 standard implementation

8 months ago 1 reply 1

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

9 months ago 2 replies

How to build a dynamic query which add number of days to date & compare that date with another date?

9 months ago 0 replies

org.hibernate.AnnotationException

9 months ago 1 reply

hibernate session flush/sync with database layer

9 months ago 3 replies

book is not mapped - hibernate issue

9 months ago 2 replies 1

Java Reflection Issue resulting in Read Only Transaction Error

9 months ago 1 reply

What is hibernate dialect, why we are using dialect in hiberate

9 months ago 13 replies

Spring

JPA data access with REST API

10 months ago 2 replies

Hibernate org.hibernate.MappingException:

10 months ago 0 replies

Hibernate generates "bad" SQL in Bulk update

10 months ago 5 replies

why use c3p0 ?

10 months ago 1 reply

Is hibernate reverse engineering compulsory ?

10 months ago 1 reply

HibernateDaoSupport is deprecated in spring 3 but present in spring 4

10 months ago 0 replies

Need to know about Devops

10 months ago 0 replies

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

10 months ago 2 replies

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

10 months ago 0 replies

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

10 months ago 2 replies

how to know what is mysql username and password ?

10 months ago 1 reply

What are the performant way to connect to a database?

10 months ago 1 reply

How to exclude some indexed items in Hibernate List

11 months ago 3 replies

java.lang.IllegalArgumentException: Cannot convert error occurred.

11 months ago 5 replies

About object relational mapping file requirements from a free Whizlab test

11 months ago 0 replies

JPA cannot persist cascading related entities

11 months ago 7 replies

About Hibernate 5.0's system exception

11 months ago 3 replies

Hibernate 5 cannot build a subquery with correlate method in Criteria API?

11 months ago 0 replies

High Volume Query Optimization

11 months ago 2 replies

What's different between mapping types in Hibernate?

11 months ago 4 replies

EJB and other Java EE Technologies

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

11 months ago 6 replies

JPA mapping error

1 year ago 1 reply
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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?

int vs Integer for JPA entity's Id field?

The debug process for PersistenceException

Custom EclipseLink ExceptionHandler

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?

Experiencing Some difficulties with Hibernate

JPA error illegal argument exception

hibernate 3 to hibernate 4

Best this month

Join query and hibernate 3

int vs Integer for JPA entity's Id field?

The debug process for PersistenceException

Custom EclipseLink ExceptionHandler

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

java hibernate persisting classes that need data from super class?

Experiencing Some difficulties with Hibernate

hibernate 3 to hibernate 4

How to convert java program with Hibernate3 to Hibernate 5.3.1?

JpaObjectRetrievalFailureException

Object Relational Mapping Forum at JavaRanch

ProjectionList hibernate Criteria

How to create mysql table with huge number of columns & rows by optimized way using Hibernate?

Suggest For Books for Hibernate, Spring and Struts

No connection specified for project. No database-specific validation will be performed

JPA in wildfly 10 standard implementation

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

How to build a dynamic query which add number of days to date & compare that date with another date?

org.hibernate.AnnotationException

hibernate session flush/sync with database layer

book is not mapped - hibernate issue

Java Reflection Issue resulting in Read Only Transaction Error

What is hibernate dialect, why we are using dialect in hiberate

JPA data access with REST API

Hibernate org.hibernate.MappingException:

Hibernate generates "bad" SQL in Bulk update

why use c3p0 ?

Is hibernate reverse engineering compulsory ?

HibernateDaoSupport is deprecated in spring 3 but present in spring 4

Need to know about Devops

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

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

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 to exclude some indexed items in Hibernate List

java.lang.IllegalArgumentException: Cannot convert error occurred.

About object relational mapping file requirements from a free Whizlab test

JPA cannot persist cascading related entities

About Hibernate 5.0's system exception

Hibernate 5 cannot build a subquery with correlate method in Criteria API?

High Volume Query Optimization

What's different between mapping types in Hibernate?

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

JPA mapping error

Databases