Q:Question:following questions. 1. Create the database by using SQL DDL commands and fill the tables with at least 3 rows. 2. Code solutions to the following problems as a relational-algebraic expression: a. Display all patients' names who have an appointment on 1-1-2020 b. Find dentists number and name who have 10 years of service and living in Muscat. /r/n 3. Code the following problems in SQL commands: a. Display all patients whose name starts withA:Answer:Coding /* drop Only table if Alrady Exists */ drop...