How to delete multiple records at the same time in Hibe…

In Hibernate, you can use HQL (Hibernate Query Language) or Criteria API to delete multiple records.

1. To use HQL, start by creating a query specifying the entity class and deletion condition. Next, create a query object using Hibernate’s createQuery() method and pass in the HQL statement. Finally, execute the deletion operation by calling the query object’s executeUpdate() method.
2. Delete all entries from EntityClass where the condition matches the specified value, and return the number of entries deleted.
3. When using the Criteria API for deleting multiple records, you need to create a Criteria query object and specify the deletion conditions using the add() method. Then, the delete() method is called to carry out the deletion operation.
4. Using the Criteria API, a CriteriaBuilder is obtained from the session. A CriteriaDelete object is created for the specified EntityClass, with a Root object representing the entity class. A condition is set on the delete operation and executed using the session, resulting in the number of affected rows being stored in the variable ‘result’.

In the examples above, EntityClass is the entity class to be deleted, condition is the field used as the deletion criteria, and value is the value of the criteria.

Whether using HQL or the Criteria API, you will ultimately need to call the executeUpdate() method to perform the deletion operation and return the number of rows affected.