Write a 350- to 700-word paper in which you do the following: Explain what database systems are and how they are used. Define database architecture. Consider Microsoft ® Access ® , Microsoft ® SQL Server ® , Oracle ® , and IBM DB2 ® software as possible examples. Summarize your paper by describing the database systems in your workplace, identifying which database systems and architecture they fall under. Include 2 to 4 references. Format your paper consistent with APA guidelines. .