1. Write a script that adds an index to the MyGuitarShop database for the zip code field in the Addresses table. 2. Write a script that implements the following design in a database named MyWebDB: In the Downloads table, the UserID and ProductID columns are the foreign keys. Include a statement to drop the database if it already exists. Include statements to create and select the database. Include any indexes that you think are necessary. 3. Write a script that adds rows to the database that you created in exercise 2. Add two rows to the Users and Products tables. Add three rows to the Downloads table: one row for user 1 and product 2; one for user 2 and product 1; and one for user 2 and product 2. Use the GETDATE function to insert the current date and time into the DownloadDate column. Write a SELECT statement that joins the three tables and retrieves the data from these tables like this: