human
Schema:
Physician (EmployeeID, Name, Position, SSN)
Department (DepartmentID, Name, Head)
Affiliated_With (Physician, Department, PrimaryAffiliation)
Procedures (Code, Name, Cost)
Trained_In (Physician, Treatment, CertificationDate, CertificationExpires)
Patient (SSN, Name, Address, Phone, InsuranceID, PCP)
Nurse (EmployeeID, Name, Position, Registered, SSN)
Appointment (AppointmentID, Patient, PrepNurse, Physician, Start, End, ExaminationRoom)
Medication (Code, Name, Brand, Description)
Prescribes (Physician, Patient, Medication, Date, Appointment, Dose)
Block (BlockFloor, BlockCode)
Room (RoomNumber, RoomType, BlockFloor, BlockCode, Unavailable)
On_Call (Nurse, BlockFloor, BlockCode, OnCallStart, OnCallEnd)
Stay (StayID, Patient, Room, StayStart, StayEnd)
Undergoes (Patient, Procedures, Stay, DateUndergoes, Physician, AssistingNurse)
Please answer with SQL.
assistant
Sure, I understand.
human
List all the patients who have an undergoing treatment.
assistant
SELECT DISTINCT patient FROM undergoes AS T1 JOIN patient AS T2 ON T1.patient = T2.SSN ;