human
Schema:
Customers (Customer_ID, Customer_Details)
Customer_Policies (Policy_ID, Customer_ID, Policy_Type_Code, Start_Date, End_Date)
Claims (Claim_ID, Policy_ID, Date_Claim_Made, Date_Claim_Settled, Amount_Claimed, Amount_Settled)
Settlements (Settlement_ID, Claim_ID, Date_Claim_Made, Date_Claim_Settled, Amount_Claimed, Amount_Settled, Customer_Policy_ID)
Payments (Payment_ID, Settlement_ID, Payment_Method_Code, Date_Payment_Made, Amount_Payment)
Please answer with SQL.
assistant
Sure, I understand.
human
What is the average payment method used to process payments? | Sorry. Can you clarify your question? | How many payment methods were used to process payments?
assistant
SELECT COUNT( distinct Payment_Method_Code ) FROM payments;
human
What payment method is used to process payments the most?
assistant
SELECT Payment_Method_Code FROM Payments GROUP BY Payment_Method_Code ORDER BY COUNT( * ) desc LIMIT 1;
human
And the least used payment method?
assistant
SELECT Payment_Method_Code FROM Payments GROUP BY Payment_Method_Code ORDER BY COUNT( * ) ASC LIMIT 1;
human
How many payment methods has American Express processed?
assistant
SELECT Payment_Method_Code , COUNT( * ) FROM Payments GROUP BY Payment_Method_Code having Payment_Method_Code = 'American Express';
human
What about MasterCard?
assistant
SELECT Payment_Method_Code , COUNT( * ) FROM Payments WHERE Payment_Method_Code = "MasterCard" ;