Delete data for few Legal Entities

Summary: Delete data for few Legal Entities

Content (please ensure you mask any confidential information): Hi All, We are looking for possibilities to delete data for few legal entities from production. This would include deleting the whole employee data for those Legal Entities in such a way that no traces remain. We would want to clean the system for those legal entities. Along with this, we would also want to delete data like positions, jobs etc.
Please let us know if Oracle can do this from backend or is there any process to do this.
Also, suppose we delete data of employees, and then reload the data with some changes but the person number should remain as before only. Will we be able to load data with same person numbers that existed before data deletion