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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

Problems about @OneToMany and @ManyToOne

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bi-directional OneToMany and ManyToOne foreign key always null Spring Boot hibernate

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Object Relational Mapping

JPA question on OneToMany MapBy vs JoinColumn

4 replies

Suggest a book on RDBMS concepts

6 replies

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1 reply 1

Could not determine type for: java.util.Set error

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Object Relational Mapping

Question on one to one bidirectional

2 replies

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2 replies

Would like to confirm if I get the relationship between these entities right

6 replies

How to Optimize Hibernate buildSessionFactory();

3 replies

Object Relational Mapping

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7 replies

Persism 1.0.1 released - A zero ceremony ORM for Java

2 replies

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2 replies

[Oracle][ODBC SQL Server Driver]Invalid parameter number {07009} in accessing from Synonym to MS SQL

11 replies

Object Relational Mapping

Converting Derived JPA query into native query: ORDER BY is NOT working

1 reply

Modelling complex many to many relationship

5 replies 2

The internal connection pool has reached its maximum size and no connection is currently available!

5 replies

Object Relational Mapping

In java/jpa/hibernate not read the database table modified from other external program

5 replies

More »
Best this month

Object Relational Mapping

JPA question on OneToMany MapBy vs JoinColumn

4 replies

Could not determine type for: java.util.Set error

1 reply

Object Relational Mapping

Question on one to one bidirectional

2 replies

Hibernate runs query against view but returns null values

2 replies

More »
Object Relational Mapping Forum at JavaRanch

Object Relational Mapping

JPA question on OneToMany MapBy vs JoinColumn

2 days ago 4 replies

Object Relational Mapping

Question on one to one bidirectional

1 week ago 2 replies

Hibernate runs query against view but returns null values

1 week ago 2 replies

JPA TransactionRequiredException

2 weeks ago 2 replies

Could not determine type for: java.util.Set error

3 weeks ago 1 reply

Hibernate Interview Questions

1 month ago 14 replies

how to use JPA to save a list of objects

1 month ago 4 replies

Persism 1.0.1 released - A zero ceremony ORM for Java

1 month ago 2 replies

Several entities saving

1 month ago 1 reply 1

Hibernate - Table Not Mapped

2 months ago 5 replies 1

SerializationException: could not deserialize

2 months ago 7 replies

Announcing Persism 1.0.0 - A no nonsense ORM for Java

2 months ago 2 replies

How to Optimize Hibernate buildSessionFactory();

3 months ago 3 replies

Object Relational Mapping

Converting Derived JPA query into native query: ORDER BY is NOT working

3 months ago 1 reply

Suggest a book on RDBMS concepts

3 months ago 6 replies

Why i can't catch ConstraintViolationException exception ?

3 months ago 9 replies

Object Relational Mapping

Changing a datasoure using Hibernate

4 months ago 7 replies

javax.persistence.PersistenceException: No Persistence provider for EntityManager

5 months ago 4 replies

Problems about @OneToMany and @ManyToOne

5 months ago 14 replies 2

The internal connection pool has reached its maximum size and no connection is currently available!

5 months ago 5 replies

Should I use One-to-Many and Many-to-One or leave them out for flexibility in SpringBoot JPA app ?

6 months ago 0 replies

Would like to confirm if I get the relationship between these entities right

6 months ago 6 replies

[Oracle][ODBC SQL Server Driver]Invalid parameter number {07009} in accessing from Synonym to MS SQL

7 months ago 11 replies

Object Relational Mapping

How to map multiple tables in Hibernate query

8 months ago 2 replies

Other JSE/JEE APIs

In java/jpa/hibernate not read the database table modified from other external program

8 months ago 5 replies

Modelling complex many to many relationship

8 months ago 5 replies 2

Mix of hibernate inheritance strategies

8 months ago 1 reply

Spring

bi-directional OneToMany and ManyToOne foreign key always null Spring Boot hibernate

9 months ago 26 replies 2 1

Object Relational Mapping

Need answers for this hibernate quiz as i dont have enough time to study and answer

9 months ago 3 replies

How to join Multiple table using hibernate criteria where entity relationship is not direct ?

9 months ago 2 replies

Object Relational Mapping

password encryption spring boot mvc using hibernate

10 months ago 2 replies

Get children for any level in tree structure but without theirs children using Hibernate?

10 months ago 13 replies 1

AddBatch equivalent in JPA

10 months ago 4 replies

Updating child DTO object and @MapsId

10 months ago 14 replies

EJB and other Jakarta/Java EE Technologies

JEE CRUD Application

11 months ago 3 replies
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Object Relational Mapping

Best this year

Problems about @OneToMany and @ManyToOne

bi-directional OneToMany and ManyToOne foreign key always null Spring Boot hibernate

Get children for any level in tree structure but without theirs children using Hibernate?

JPA question on OneToMany MapBy vs JoinColumn

Suggest a book on RDBMS concepts

JPA TransactionRequiredException

Several entities saving

Could not determine type for: java.util.Set error

Question on one to one bidirectional

Hibernate runs query against view but returns null values

Would like to confirm if I get the relationship between these entities right

How to Optimize Hibernate buildSessionFactory();

Changing a datasoure using Hibernate

Persism 1.0.1 released - A zero ceremony ORM for Java

Announcing Persism 1.0.0 - A no nonsense ORM for Java

[Oracle][ODBC SQL Server Driver]Invalid parameter number {07009} in accessing from Synonym to MS SQL

Converting Derived JPA query into native query: ORDER BY is NOT working

Modelling complex many to many relationship

The internal connection pool has reached its maximum size and no connection is currently available!

In java/jpa/hibernate not read the database table modified from other external program

Best this month

JPA question on OneToMany MapBy vs JoinColumn

Could not determine type for: java.util.Set error

Question on one to one bidirectional

Hibernate runs query against view but returns null values

Object Relational Mapping Forum at JavaRanch

JPA question on OneToMany MapBy vs JoinColumn

Question on one to one bidirectional

Hibernate runs query against view but returns null values

JPA TransactionRequiredException

Could not determine type for: java.util.Set error

Hibernate Interview Questions

how to use JPA to save a list of objects

Persism 1.0.1 released - A zero ceremony ORM for Java

Several entities saving

Hibernate - Table Not Mapped

SerializationException: could not deserialize

Announcing Persism 1.0.0 - A no nonsense ORM for Java

How to Optimize Hibernate buildSessionFactory();

Converting Derived JPA query into native query: ORDER BY is NOT working

Suggest a book on RDBMS concepts

Why i can't catch ConstraintViolationException exception ?

Changing a datasoure using Hibernate

javax.persistence.PersistenceException: No Persistence provider for EntityManager

Problems about @OneToMany and @ManyToOne

The internal connection pool has reached its maximum size and no connection is currently available!

Should I use One-to-Many and Many-to-One or leave them out for flexibility in SpringBoot JPA app ?

Would like to confirm if I get the relationship between these entities right

[Oracle][ODBC SQL Server Driver]Invalid parameter number {07009} in accessing from Synonym to MS SQL

How to map multiple tables in Hibernate query

In java/jpa/hibernate not read the database table modified from other external program

Modelling complex many to many relationship

Mix of hibernate inheritance strategies

bi-directional OneToMany and ManyToOne foreign key always null Spring Boot hibernate

Need answers for this hibernate quiz as i dont have enough time to study and answer

How to join Multiple table using hibernate criteria where entity relationship is not direct ?

password encryption spring boot mvc using hibernate

Get children for any level in tree structure but without theirs children using Hibernate?

AddBatch equivalent in JPA

Updating child DTO object and @MapsId

JEE CRUD Application

Databases