How to do multiple column UniqueConstraint in hbm?

Question

Working on some legacy hibernate code.

How do I do the following with hbm.xml(hibernate mapping file) instead of with annotations?

@Table(name=\"user         


        

Answer 1

You can add same unique-key attribute to two different columns. This will create composite unique key.

In the above example the unique key will be created from both first_name and last_name column.