Return the names and ids of all products whose price is between 600 and 700.
SELECT product_name ,  product_id FROM products WHERE product_price BETWEEN 600 AND 700
SELECT product_name ,  product_id FROM products WHERE product_price BETWEEN 600 AND 700
[{'product_name': 'yellow jeans', 'product_id': 2}, {'product_name': 'black jeans', 'product_id': 3}, {'product_name': 'blue topping', 'product_id': 9}, {'product_name': 'keyboard', 'product_id': 13}, {'product_name': 'speaker', 'product_id': 14}]