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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

More »
Object Relational Mapping Forum at JavaRanch

Is there any equivalent of PreparedStatement in Hibernate and Spring-Data?

4 months ago 0 replies

Hibernate configuration

4 months ago 2 replies

Other JSE/JEE APIs

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

4 months ago 14 replies

many 2 many relastionship with extra columns

4 months ago 2 replies

CSV File returns empty values

4 months ago 3 replies 1

Java in General

How to Ignore Quote in parameterized HQL

4 months ago 2 replies

Beginning Java

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

5 months ago 5 replies

what is owner entity and parent entity in hibernate jpa?

5 months ago 2 replies

The debug process for PersistenceException

5 months ago 5 replies

Invalid character error in Mybatis

5 months ago 5 replies

MyBatis

5 months ago 11 replies

HQL Hibernate INNER JOIN SUBQuery

5 months ago 6 replies

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

5 months ago 4 replies

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

5 months ago 2 replies

Cannot add or update a child row: a foreign key constraint fails JPA/Hibernate

5 months ago 4 replies

Authentication String of Root User on MySQL

5 months ago 3 replies

hibernate data mapping difference between SQL server and DB2

5 months ago 0 replies

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

5 months ago 5 replies 2

Hibernate Spring problem with Illegal attempt to associate a collection with two open sessions

6 months ago 4 replies

Hibernate/C3PO Not Automatically Restoring Lost Connections

6 months ago 1 reply

Complex MyBatis Mapping - Annotations vs XML File

6 months ago 2 replies

Web Services

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

6 months ago 2 replies

Microsoft Sql + Hibernate 3.0 + jboss 7 executeUpdate not reflecting

6 months ago 1 reply

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

6 months ago 1 reply

int vs Integer for JPA entity's Id field?

6 months ago 10 replies

Hibernate Delete Not Null Columns

6 months ago 4 replies

Experiencing Some difficulties with Hibernate

6 months ago 0 replies

Books

Hibernate and JPA Book Reccomendations

6 months ago 3 replies

hibernate 3 to hibernate 4

7 months ago 0 replies

Custom EclipseLink ExceptionHandler

7 months ago 0 replies

Join query and hibernate 3

7 months ago 10 replies

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

7 months ago 1 reply

How to convert java program with Hibernate3 to Hibernate 5.3.1?

7 months ago 0 replies

JDBC and Relational Databases

java hibernate persisting classes that need data from super class?

7 months ago 1 reply
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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

Object Relational Mapping Forum at JavaRanch

Is there any equivalent of PreparedStatement in Hibernate and Spring-Data?

Hibernate configuration

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

many 2 many relastionship with extra columns

CSV File returns empty values

How to Ignore Quote in parameterized HQL

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

what is owner entity and parent entity in hibernate jpa?

The debug process for PersistenceException

Invalid character error in Mybatis

MyBatis

HQL Hibernate INNER JOIN SUBQuery

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

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

Cannot add or update a child row: a foreign key constraint fails JPA/Hibernate

Authentication String of Root User on MySQL

hibernate data mapping difference between SQL server and DB2

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

Hibernate Spring problem with Illegal attempt to associate a collection with two open sessions

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?

Databases