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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

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

Object Relational Mapping

Hibernate ManyToOne Reporting error

9 replies 2

Is there a way to create a Conditional insert with JPA

6 replies

Object Relational Mapping

Flush old data and make query for a new data

5 replies

Object Relational Mapping

MyBatis

11 replies

Squeezing Four HQL Queries Into One

14 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

Object Relational Mapping

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

9 replies

JPA Criteria API - unintentional CROSS JOIN

4 replies

Object Relational Mapping

HQL Hibernate INNER JOIN SUBQuery

6 replies

Question on checking and logging an enity before inserting

2 replies

Hibernate does not persist my database

7 replies

CSV File returns empty values

3 replies 1

Dealing with database using hibernate

1 reply

create to generate table through hibernate

2 replies 1

More »
Best this month

Error in persistence and other files

8 replies 1

Object Relational Mapping

Hibernate ManyToOne Reporting error

9 replies 2

Is there a way to create a Conditional insert with JPA

6 replies

Object Relational Mapping

Cannot use JPA in dynamic web project in eclipse oxygen

4 replies

Question on checking and logging an enity before inserting

2 replies

Dealing with database using hibernate

1 reply

Object Relational Mapping

Hibernate

2 replies

Object Relational Mapping

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

1 reply

Object Relational Mapping

Spring Hibernate Hikari CP

0 replies

More »
Object Relational Mapping Forum at JavaRanch

Hibernate: getById query

3 years ago 16 replies

Integrate Hibernate into a new Spring MVC Project (generated by STS)

3 years ago 3 replies

Fetching the posts of the profiles the user follows

3 years ago 1 reply

can an application have both hibernate.properties file and hibernate.cfg.xml

3 years ago 2 replies

Returning only one value from JPA query

3 years ago 8 replies

How to apply OneToOne mapping annotaion in hibernate.

3 years ago 2 replies

Can I add new tables or add columns to existing tables in the old system’s Database for new system?

3 years ago 2 replies

JPQL: converting a certain type of dynamic query to a named and static query.

3 years ago 16 replies

Hibernate spring jsp maven

3 years ago 1 reply

Can't Load Data on JSP

3 years ago 10 replies

Dynamic queries to entities from the view layer

3 years ago 1 reply

Hibernate/JPA MySql unidirectional OneToMany Mapping save exception

3 years ago 7 replies

Field doesn't have a default value with manyToMany Hibernate relationship

3 years ago 14 replies 1

How to avoid Duplicate entry

3 years ago 12 replies

org.hibernate.PropertyNotFoundException: Could not find setter

3 years ago 1 reply

Netbeans Help

3 years ago 5 replies

Mapping issues when migrating from Hibernate 4.3 to 5.0.2.final

3 years ago 5 replies 1

access denied connecting Amazon RDS-Mysql from local Spring-JPA application

3 years ago 2 replies

Bad Design leading to Bad Performance as data grows

3 years ago 7 replies

JPA - Projecting a single unique field.

3 years ago 1 reply

What is the use of @forcediscriminator ?

3 years ago 5 replies

How does a native sql query bind fields to an entity instead of map (result transformer issue)

3 years ago 0 replies

Hibernate - slow at startup/mapping

3 years ago 4 replies

JPA Class cast exception for same class

3 years ago 5 replies

objects are cached

3 years ago 0 replies

How To Solved : "org.hibernate.exception.SQLGrammarException: could not execute query"

3 years ago 4 replies

Hibernate referencing abstract entity for constraints

3 years ago 9 replies

Single mapping thousand schemas at Hibernate: Suitable and how to?

3 years ago 1 reply

How to use jdo schematool to find the difference in jdo.mapping and the actual database?

3 years ago 0 replies

Need help designing joined table

3 years ago 15 replies

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

3 years ago 2 replies

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

3 years ago 1 reply

Hibernate: Confusion about lazy/eager fetching and preventing LazyInitializationException

3 years ago 8 replies

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

3 years ago 1 reply

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

3 years ago 2 replies
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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

Hibernate ManyToOne Reporting error

Is there a way to create a Conditional insert with JPA

Flush old data and make query for a new data

MyBatis

Squeezing Four HQL Queries Into One

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?

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

JPA Criteria API - unintentional CROSS JOIN

HQL Hibernate INNER JOIN SUBQuery

Question on checking and logging an enity before inserting

Hibernate does not persist my database

CSV File returns empty values

Dealing with database using hibernate

create to generate table through hibernate

Best this month

Error in persistence and other files

Hibernate ManyToOne Reporting error

Is there a way to create a Conditional insert with JPA

Cannot use JPA in dynamic web project in eclipse oxygen

Question on checking and logging an enity before inserting

Dealing with database using hibernate

Hibernate

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

Spring Hibernate Hikari CP

Object Relational Mapping Forum at JavaRanch

Hibernate: getById query

Integrate Hibernate into a new Spring MVC Project (generated by STS)

Fetching the posts of the profiles the user follows

can an application have both hibernate.properties file and hibernate.cfg.xml

Returning only one value from JPA query

How to apply OneToOne mapping annotaion in hibernate.

Can I add new tables or add columns to existing tables in the old system’s Database for new system?

JPQL: converting a certain type of dynamic query to a named and static query.

Hibernate spring jsp maven

Can't Load Data on JSP

Dynamic queries to entities from the view layer

Hibernate/JPA MySql unidirectional OneToMany Mapping save exception

Field doesn't have a default value with manyToMany Hibernate relationship

How to avoid Duplicate entry

org.hibernate.PropertyNotFoundException: Could not find setter

Netbeans Help

Mapping issues when migrating from Hibernate 4.3 to 5.0.2.final

access denied connecting Amazon RDS-Mysql from local Spring-JPA application

Bad Design leading to Bad Performance as data grows

JPA - Projecting a single unique field.

What is the use of @forcediscriminator ?

How does a native sql query bind fields to an entity instead of map (result transformer issue)

Hibernate - slow at startup/mapping

JPA Class cast exception for same class

objects are cached

How To Solved : "org.hibernate.exception.SQLGrammarException: could not execute query"

Hibernate referencing abstract entity for constraints

Single mapping thousand schemas at Hibernate: Suitable and how to?

How to use jdo schematool to find the difference in jdo.mapping and the actual database?

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?

Databases