Task: Text to Code
Input (English): Step 1: find the number of rows of each value of customer_id in Customers table.
Step 2: find customer_id, customer_first_name, customer_last_name in Customers table whose corresponding value in step 1 is greater than or equals 2
Output (English): SELECT customer_id , customer_first_name , customer_last_name FROM Customers GROUP BY customer_id HAVING Count ( * ) > = 2