1. WHERE Used to filter the data in the output always after FROM SELECT * FROM payment WHERE amount = 10.99; -- end of query SELECT first_name, last_name FROM customer WHERE first_name = 'ADAM' * Challenge 1. How many payment were made by the customer with customer_id = 100? 2. What is the last name of our customer with first name 'ERICA'? SELECT COUNT(*) FROM payment WHERE customer_id = 100; SE..
