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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

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

Error in persistence and other files

8 replies 1

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

10 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

Squeezing Four HQL Queries Into One

14 replies

Question on Mapping Many To Many

3 replies

Could not execute Hibernate statement

2 replies

int vs Integer for JPA entity's Id field?

10 replies

Object Relational Mapping

Cannot use JPA in dynamic web project in eclipse oxygen

4 replies

Object Relational Mapping

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

14 replies

Q on ManyToMany mapping when I update a parent with a new child it replaces the existingchild

2 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

how to display the ? values in HQL

2 replies

More »
Best this month

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

10 replies

Entity is not mapped

3 replies

Could not execute Hibernate statement

2 replies

Q on ManyToMany mapping when I update a parent with a new child it replaces the existingchild

2 replies

how to display the ? values in HQL

2 replies

Object Relational Mapping

Criteria builder and Path..How to compare dates column

0 replies

More »
Object Relational Mapping Forum at JavaRanch

Beginning Java

Hibernate shenanigans

2 hours ago 3 replies

Criteria builder and Path..How to compare dates column

21 hours ago 0 replies

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

6 days ago 10 replies

how to display the ? values in HQL

1 week ago 2 replies

Custom Bean Validation never executed

1 week ago 4 replies

Entity is not mapped

1 week ago 3 replies

Could not execute Hibernate statement

2 weeks ago 2 replies

Q on ManyToMany mapping when I update a parent with a new child it replaces the existingchild

2 weeks ago 2 replies

Hibernate Interview Questions

2 weeks ago 11 replies

Error on @Entity

4 weeks ago 2 replies

Hibernate and TomEE+ bidirectional association causes json recursiveness

1 month ago 1 reply

Question on Mapping Many To Many

1 month ago 3 replies

Other JSE/JEE APIs

Cannot use JPA in dynamic web project in eclipse oxygen

1 month ago 4 replies

Is there a way to create a Conditional insert with JPA

1 month ago 6 replies

JDBC and Relational Databases

Hibernate

1 month ago 2 replies

Question on checking and logging an enity before inserting

1 month ago 2 replies

Java in General

Hibernate ManyToOne Reporting error

1 month ago 9 replies 2

Error in persistence and other files

1 month ago 8 replies 1

Hibernate - native SQL query, get more than one Entity?

1 month ago 1 reply

Spring Hibernate Hikari CP

2 months ago 0 replies

Dealing with database using hibernate

2 months ago 1 reply

Other JSE/JEE APIs

JPA same sequence for two applications not working

2 months ago 0 replies

Spring

Flush old data and make query for a new data

2 months ago 5 replies

hibernate.PropertyAccessException: Could not set field value [410] value by reflection

2 months ago 2 replies

JPA foreign key

2 months ago 1 reply

How Can I return the generated key with Hibernate?

2 months ago 7 replies

JPA Criteria API - unintentional CROSS JOIN

2 months ago 4 replies

Primary key generation in Hibernate

2 months ago 0 replies

EJB and other Jakarta/Java EE Technologies

which framework is being used most in Persistence Layer?

2 months ago 13 replies

Squeezing Four HQL Queries Into One

2 months ago 14 replies

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

3 months ago 22 replies 2

Hibernate does not persist my database

3 months ago 7 replies

Hibernate configuration

3 months ago 0 replies

Struts

One-to-one mapping in hibernate

3 months ago 1 reply

create to generate table through hibernate

3 months ago 2 replies 1
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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?

Error in persistence and other files

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

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

Squeezing Four HQL Queries Into One

Question on Mapping Many To Many

Could not execute Hibernate statement

int vs Integer for JPA entity's Id field?

Cannot use JPA in dynamic web project in eclipse oxygen

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

Q on ManyToMany mapping when I update a parent with a new child it replaces the existingchild

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

JPA Criteria API - unintentional CROSS JOIN

how to display the ? values in HQL

Best this month

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

Entity is not mapped

Could not execute Hibernate statement

Q on ManyToMany mapping when I update a parent with a new child it replaces the existingchild

how to display the ? values in HQL

Criteria builder and Path..How to compare dates column

Object Relational Mapping Forum at JavaRanch

Hibernate shenanigans

Criteria builder and Path..How to compare dates column

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

how to display the ? values in HQL

Custom Bean Validation never executed

Entity is not mapped

Could not execute Hibernate statement

Q on ManyToMany mapping when I update a parent with a new child it replaces the existingchild

Hibernate Interview Questions

Error on @Entity

Hibernate and TomEE+ bidirectional association causes json recursiveness

Question on Mapping Many To Many

Cannot use JPA in dynamic web project in eclipse oxygen

Is there a way to create a Conditional insert with JPA

Hibernate

Question on checking and logging an enity before inserting

Hibernate ManyToOne Reporting error

Error in persistence and other files

Hibernate - native SQL query, get more than one Entity?

Spring Hibernate Hikari CP

Dealing with database using hibernate

JPA same sequence for two applications not working

Flush old data and make query for a new data

hibernate.PropertyAccessException: Could not set field value [410] value by reflection

JPA foreign key

How Can I return the generated key with Hibernate?

JPA Criteria API - unintentional CROSS JOIN

Primary key generation in Hibernate

which framework is being used most in Persistence Layer?

Squeezing Four HQL Queries Into One

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

Hibernate does not persist my database

Hibernate configuration

One-to-one mapping in hibernate

create to generate table through hibernate

Databases