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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

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

3 replies 2

Object Relational Mapping

which framework is being used most in Persistence Layer?

12 replies

Object Relational Mapping

MyBatis

11 replies

int vs Integer for JPA entity's Id field?

10 replies

Object Relational Mapping

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

9 replies

Object Relational Mapping

HQL Hibernate INNER JOIN SUBQuery

6 replies

Object Relational Mapping

Question on database design: It's really a hierarchical design

4 replies

Join query and hibernate 3

10 replies

The debug process for PersistenceException

5 replies

Object Relational Mapping

Generate portable SQL statements

15 replies

Object Relational Mapping

Why use JPA over Hibernate?

11 replies

Object Relational Mapping

org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "monthIncome1")

5 replies

what is owner entity and parent entity in hibernate jpa?

2 replies

org.hibernate.exception.SQLGrammarException: could not extract ResultSet

5 replies 2

Object Relational Mapping

Hibernate and JPA Book Reccomendations

3 replies

Object Relational Mapping

How to Ignore Quote in parameterized HQL

1 reply

Object Relational Mapping

Authentication String of Root User on MySQL

3 replies

JPA, one-to-many list is always null

13 replies

Invalid character error in Mybatis

5 replies

How to show Result from combined two tables by hibernate?

19 replies

More »
Best this month

Object Relational Mapping

MyBatis

11 replies

Object Relational Mapping

HQL Hibernate INNER JOIN SUBQuery

6 replies

Object Relational Mapping

Question on database design: It's really a hierarchical design

4 replies

Object Relational Mapping

org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "monthIncome1")

5 replies

what is owner entity and parent entity in hibernate jpa?

2 replies

Object Relational Mapping

How to Ignore Quote in parameterized HQL

1 reply

Object Relational Mapping

Authentication String of Root User on MySQL

3 replies

Invalid character error in Mybatis

5 replies

How to dynamically select a resultMap based on the value of a column in MyBatis

2 replies

Qual melhor pratica muitos pra muitos nesse caso

0 replies

hibernate data mapping difference between SQL server and DB2

0 replies

More »
Object Relational Mapping Forum at JavaRanch

Need help designing joined table

2 years ago 15 replies

org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0];

2 years ago 2 replies

How to connect to pluggable database in Oracle 12c using Hibernate?

2 years ago 1 reply

Hibernate: Confusion about lazy/eager fetching and preventing LazyInitializationException

2 years ago 8 replies

How to get updated data for many to many mappings in Hibernate

2 years ago 1 reply

Hibernate 5.0.0 - Mapping in hibernate.cfg.xml ignored?

2 years ago 2 replies

Hibernate-MySQL bug

2 years ago 4 replies

What does @CollectionTable do ?

2 years ago 3 replies

Hibernate OneToMany with ORA-02291 error

2 years ago 3 replies

Fetching user posts with pagination

2 years ago 2 replies

Hibernate creating entites not listed in persistence.xml

2 years ago 0 replies

JPA 2: composite primary key classes

2 years ago 5 replies

How to retrieve a hibernate object with composite key

2 years ago 4 replies

When to use dirty checking option and when not to use it?

3 years ago 2 replies

IllegalArgumentException when calling getter of persisted object ID in Hibernate.

3 years ago 0 replies

What does @ElementCollection with @Column mean ?

3 years ago 3 replies

Replacement of KODO with OpenJPA 1.0

3 years ago 2 replies

Where are tutorial source code located for Hibernate ?

3 years ago 6 replies

please recommend a Hibernate manuaal

3 years ago 1 reply

Server Side changes to persist “Browser View” CheckBox value in DB

3 years ago 2 replies

EclipseLink 2.4.2 Unmarshalling null strings to empty strings("")

3 years ago 1 reply

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

3 years ago 1 reply

Save and Delete Bidirectional Foreign key entities

3 years ago 16 replies

@Query and Angular Data Tables

3 years ago 1 reply

OneToMany design issue in JPA

3 years ago 1 reply

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

3 years ago 0 replies

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

3 years ago 14 replies

Hibernate Joins Performance Issues

3 years ago 9 replies

hibernate lucene search

3 years ago 2 replies

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

3 years ago 14 replies

JPA Drawbacks

3 years ago 6 replies

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

3 years ago 4 replies

Error when merging manyToMany relation in JPA

3 years ago 0 replies

javax.persistence.PersistenceException: Unable to locate persistence units

3 years ago 2 replies
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Object Relational Mapping

Best this year

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

which framework is being used most in Persistence Layer?

MyBatis

int vs Integer for JPA entity's Id field?

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

HQL Hibernate INNER JOIN SUBQuery

Question on database design: It's really a hierarchical design

Join query and hibernate 3

The debug process for PersistenceException

Generate portable SQL statements

Why use JPA over Hibernate?

org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "monthIncome1")

what is owner entity and parent entity in hibernate jpa?

org.hibernate.exception.SQLGrammarException: could not extract ResultSet

Hibernate and JPA Book Reccomendations

How to Ignore Quote in parameterized HQL

Authentication String of Root User on MySQL

JPA, one-to-many list is always null

Invalid character error in Mybatis

How to show Result from combined two tables by hibernate?

Best this month

MyBatis

HQL Hibernate INNER JOIN SUBQuery

Question on database design: It's really a hierarchical design

org.apache.ibatis.ognl.OgnlException: source is null for getProperty(null, "monthIncome1")

what is owner entity and parent entity in hibernate jpa?

How to Ignore Quote in parameterized HQL

Authentication String of Root User on MySQL

Invalid character error in Mybatis

How to dynamically select a resultMap based on the value of a column in MyBatis

Qual melhor pratica muitos pra muitos nesse caso

hibernate data mapping difference between SQL server and DB2

Object Relational Mapping Forum at JavaRanch

Need help designing joined table

org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0];

How to connect to pluggable database in Oracle 12c using Hibernate?

Hibernate: Confusion about lazy/eager fetching and preventing LazyInitializationException

How to get updated data for many to many mappings in Hibernate

Hibernate 5.0.0 - Mapping in hibernate.cfg.xml ignored?

Hibernate-MySQL bug

What does @CollectionTable do ?

Hibernate OneToMany with ORA-02291 error

Fetching user posts with pagination

Hibernate creating entites not listed in persistence.xml

JPA 2: composite primary key classes

How to retrieve a hibernate object with composite key

When to use dirty checking option and when not to use it?

IllegalArgumentException when calling getter of persisted object ID in Hibernate.

What does @ElementCollection with @Column mean ?

Replacement of KODO with OpenJPA 1.0

Where are tutorial source code located for Hibernate ?

please recommend a Hibernate manuaal

Server Side changes to persist “Browser View” CheckBox value in DB

EclipseLink 2.4.2 Unmarshalling null strings to empty strings("")

<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

Databases