[Solved] Database with a minimum of 6 tables

Design a new database with a minimum of 6 tables.

• At least 6 (or more) TABLES!
• An ERD or updated ERD.
• At least two tables should use a sequence to generate primary key values.
• Produce a database script file (.sql) that will create the database.
• Produce a script file to add data to the database.
• Produce a script file with 10 queries:At least two using join
• At least three using where clause
• At least three using order by
• At least two using single row functions
• At least two using group by and group functions
• at least one nested query