Qhestion 7 (Total 20 points): e SQL statements to answer questions 1.1, 1.2, 1.3 and 1.4 based on the following schema. Primary Reys are( BOLD and italicized) and attributes with the same names in different tables are foreign keys. Doctors (doctorid, doctorName, specialty) Patients (patientId, patientName,6 sex, patientBalance, numberofvisits) Records (doctorId, patientId, date, diagnosis, visitcost)