question 4 you are working with a database table that contains customer data. the table includes columns about customer location such as city, state, and country. you want to retrieve the first 3 letters of each country name. you decide to use the substr function to retrieve the first 3 letters of each country name, and use the as command to store the result in a new column called new country. you write the sql query below. add a statement to your sql query that will retrieve the first 3 letters of each country name and store the result in a new column as new country