unique « Column « JPA Q&A

1. Java Hibernate check if a value exists stackoverflow.com

Mysql table Employee uses employeeID as PK. It also has a field called EmployeeNumber. EmployeeNumber is either null or unique. (Some special employees don't have an employee#). When inserting an employee ...

2. Unique key Index on multiple column in hibernate forum.hibernate.org

Hi, I have a unique key constraint on a table named as suppose Employee, this key is made of using two columns(suppose Name& Join_date) in same table, can we create this unique key constraint using hbm/pojo in hibernate also for saving purpose. Currently I am just looking up object for unique key fields using criteria api and comparing in at java ...

3. How to define unique columns forum.hibernate.org

4. unique index on multiple columns forum.hibernate.org

5. 3/4 columns "together" need to be unique forum.hibernate.org

6. Unique Column Based On Another Column forum.hibernate.org

I have a table that is structured like so: MENU_NO MENU_NAME MENU_PARENT (refers back to MENU_NO) MENU_ORDER would there be a way to have hibernate populate the MENU_ORDER column automatically. The MENU_ORDER column should go in numerical order based on the MENU_PARENT column. If it is the top level menu row, the parent is 0. For example: Menu_no, Menu_name, ...

7. Re: Combined UNIQUE Column forum.hibernate.org

8. Unique-Key over 3 columns from 2 objects forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.0.4 Mapping documents: Code: hibernate-mapping auto-import="true" package="de.mk.srb.model"> ...

9. multiple unique columns - only first violation throws forum.hibernate.org

Hi I have a table with several columns with unique constraints and I'd like to report all constraint violations in one round-trip, rather than having the user correct each one, one by one with many re-submits. Currently, the way I'm detecting the violation is by flushing the session after a makePersistant call, catching the ConstraintViolationException and inspecting the exception message to ...

10. How to use unique-key to set unique ness to multiple column forum.hibernate.org

11. Can group of columns be made unique forum.hibernate.org

Hi, Is it possible to set a group of columns in the *.hbm.xml file as unique. What I am trying to do is, I have a pojo Employee.java and the corresponding Employee.hbm.xml file is: ...

12. Unique key involving two columns forum.hibernate.org

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13. Unique key involving two columns forum.hibernate.org

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14. Can I re-use one column from comp-id into a unique-index ? forum.hibernate.org

Hibernate version: Hibernate-Version: 3.1.3 Mapping documents: + This is the mapping for a USER table Code: