Given the following 7 relations:
MIScompany (name, address, phone,
email, FedTaxId, StaTaxId)
branch (branchId, name, address,
phone, email, FedTaxId, StaTaxId)
employee (empId, driverId, ssno, name,
branchId)
customer (custId, name, address,
driverId, ssno, FedTaxId, StaTaxId)
equipment (equipId, name, type, upc,
purchaseDate, year, manufacturId, cost, rentFee, branchId )
manufacturer (manufacturId, name,
FedTaxId, StaTaxId, phone, email)
rental (rentalId,
equipId, custId, rentDate&time,
returnDate&time, empId)
Use relational algebra to retrieve every customer that has not
rented any equipment in September 2020. The report should contain...