Select the ProductName, CategoryID and Price fields from the Products table, only for those products where Price is less than $50 and the CategoryID is 3.

Write SQL code to select the ProductName and Price fields from the Products table, only for those products where Price is greater than $10 and the ProductName starts with either the letter "C" or the letter "S".

Write SQL code to obtain all unique Citys in the Customers table. In other words, each City should only be in one record of your results.