Task: Text to Code
Input (English): Step 1: find the Customer_ID of Customers table.
Step 2: find the Customer_ID of Policies table.
Step 3: show the rows that are in the results of step 1 but not in the results of step 2
Output (English): SELECT T1.Customer_ID FROM Customers AS T1 EXCEPT SELECT T2.Customer_ID FROM Policies AS T2