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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

Object Relational Mapping

Hibernate

2 replies

Object Relational Mapping

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

1 reply

More »
Object Relational Mapping Forum at JavaRanch

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

8 months ago 3 replies 2

How to ignore some database errors in a Hibernate Session

8 months ago 2 replies

Other JSRs

org.apache.tomcat.dbcp cannot be cast to oracle.jdbc.OracleConnection when using eclipselink JPA

8 months ago 4 replies

Reg Hibernate Cache

8 months ago 0 replies 1

criteria API in Hibernate and Java

8 months ago 2 replies

Hibernate SpringBoot CrudRepository Delete is not working

8 months ago 1 reply

Hibernate Serialization Issue

9 months ago 3 replies

Problem with Hql Update

9 months ago 7 replies

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

9 months ago 9 replies

Many to many be able to save from both side

10 months ago 0 replies

EJB and other Jakarta/Java EE Technologies

OpenJPA to JavaDB configuration (TomEE)

10 months ago 7 replies

JPA - OneToOne - Unidirection - Parent key refer in child class

10 months ago 2 replies

Datamodel migration tooling

10 months ago 0 replies

Inexplicable ConstraintViolationException

10 months ago 14 replies

Do select operations need a Transaction?

10 months ago 1 reply

JDBC and Relational Databases

Java one code base for multiple domains

10 months ago 1 reply

Hibernate query to remove leading zero

11 months ago 34 replies 2

HQL Error - Unexpected Token?

11 months ago 2 replies

Getting Null Pointer Exception in Hibernate program

11 months ago 3 replies

javax.persistence.EntityExistsException with JPA SequenceGenerator

11 months ago 2 replies

Should I use CDI SessionFactory injection or Hibernate SessionFactory?

11 months ago 0 replies

I want check row if exists on table before insertation with Hibernate

11 months ago 0 replies

Jpql using distinct

11 months ago 0 replies

EJB and other Jakarta/Java EE Technologies

JPA seems to crash

11 months ago 8 replies

How to show Result from combined two tables by hibernate?

11 months ago 19 replies

which file to write the configuration of hibernate.cfg.xml file

11 months ago 1 reply

JDBC and Relational Databases

Types of SQL injections

1 year ago 9 replies 1

Spring

what is JPA Persistence Unit

1 year ago 2 replies

Spring

Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'

1 year ago 1 reply

How do you Map String Array to JPA ?

1 year ago 10 replies 1

JPA, Hibernate and (?) missing entity field

1 year ago 0 replies

JDBC and Relational Databases

Generate portable SQL statements

1 year ago 15 replies

Hibernate/Tapestry: "detached entity passed to persist"

1 year 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

Hibernate

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

Object Relational Mapping Forum at JavaRanch

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

How to ignore some database errors in a Hibernate Session

org.apache.tomcat.dbcp cannot be cast to oracle.jdbc.OracleConnection when using eclipselink JPA

Reg Hibernate Cache

criteria API in Hibernate and Java

Hibernate SpringBoot CrudRepository Delete is not working

Hibernate Serialization Issue

Problem with Hql Update

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

Many to many be able to save from both side

OpenJPA to JavaDB configuration (TomEE)

JPA - OneToOne - Unidirection - Parent key refer in child class

Datamodel migration tooling

Inexplicable ConstraintViolationException

Do select operations need a Transaction?

Java one code base for multiple domains

Hibernate query to remove leading zero

HQL Error - Unexpected Token?

Getting Null Pointer Exception in Hibernate program

javax.persistence.EntityExistsException with JPA SequenceGenerator

Should I use CDI SessionFactory injection or Hibernate SessionFactory?

I want check row if exists on table before insertation with Hibernate

Jpql using distinct

JPA seems to crash

How to show Result from combined two tables by hibernate?

which file to write the configuration of hibernate.cfg.xml file

Types of SQL injections

what is JPA Persistence Unit

Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'

How do you Map String Array to JPA ?

JPA, Hibernate and (?) missing entity field

Generate portable SQL statements

Hibernate/Tapestry: "detached entity passed to persist"

Databases