The following is the database schema used to track blooddonations. The database has been in use for several years andcontains thousands of entries. Primary keys are RID inReceptionist, DID in the donor, BID in Blood, NID in Nurses,PatientID in Transfusions and foreign keys carry the same names asthe primary keys they reference.
Receptionist (RID, Name, Address, Phone#)
Donor (DID, Name, Address, Phone#, SSN, gender, DOB)
Blood(BID, Blood_type, Cost, DID, NID)
Nurses(NID, Name, Address, Phone#)
Transfusions(PatientID, Date, Trans#, BID)
Implement the following database refactoring requests by usingthe appropriate refactoring pattern(s) and describing the processof accomplishing the refactoring requests including (for each usedrefactoring):
1. name of the refactoring pattern
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