1. (a) Use SQL to create a relational database for the example of MD ER and relational model in chapter 3 on data analytics (b) Populate with SQL with some representative data and display the table contents. (c) Use an aggregate query in SQL to aggregate sales at a higher level. Show the result. Hint: In Latex, to create tables, use the environment beginftabulartclclcl... \endftabular} , with as many "c"s C S as columns. 1. (a) Use SQL to create a relational database for the example of MD ER and relational model in chapter 3 on data analytics (b) Populate with SQL with some representative data and display the table contents. (c) Use an aggregate query in SQL to aggregate sales at a higher level. Show the result. Hint: In Latex, to create tables, use the environment beginftabulartclclcl... \endftabular} , with as many "c"s C S as columns