CREATE TABLE customer_orders (customer_id VARCHAR2)
CREATE TABLE customers (customer_name VARCHAR2, customer_id VARCHAR2)

Show the names of customers having an order with shipping method FedEx and order status Paid.
SELECT T1.customer_name FROM customers AS T1 JOIN customer_orders AS T2 ON T1.customer_id = T2.customer_id WHERE shipping_method_code = 'FedEx' AND order_status_code = 'Paid'
SELECT "T1"."customer_name" FROM "customers" "T1" JOIN "customer_orders" "T2" ON "T1"."customer_id" = "T2"."customer_id" WHERE "order_status_code" = 'Paid' AND "shipping_method_code" = 'FedEx'