Databases:

Normalization:

Part b refers to the results of part a, part c refers to the results of part b. You may add additional fields, like making up a key when there is no good existing field.

2. Property(Property_id, county, lot_num, lot_area, price, tax_rate, (date_paid, amount) )

Functional Dependencies Property_id count,lot_num, area, price, tax_rate, date_paid,amount area price county tax_rate date_paid amount a) is this relation in 1NF? If not, why not? And if not, put it in 1NF b) is this relation in 2NF? If not, why not? And if not, put it in 2NF. c) is this relation in 3NF? If not, why not? And if not, put it in 3NF.

1. invoice (invoice_no, invoice_date, cust_name, cust_addr, (pet_name, procedure, amount ))

Functional Dependencies invoice_no invoice_date, cust_name, cust_addr, pet_name invoice_no, pet_name procedure cust_name cust_addr procedure amount a) is this relation in 1NF? If not, why not? And if not, put it in 1NF b) is this relation in 2NF? If not, why not? And if not, put it in 2NF. c) is this relation in 3NF? If not, why not? And if not, put it in 3NF.