Database, Data Engineering, Dbms, Data Modeling, Data Management.
loan_records set interest_rate = interest_rate * 0.9 where user_id <= 10005; update loan_records set total_debt = loan_amount + (loan_amount * (interest_rate / 100) * DATEDIFF(loan_end_date, loan_start_date) / 365); Check again to see if the old records have been replaced by the new ones: mysql>