Before DBMS, applications were directly built on top of file systems. Give two disadvantages of this approach. 2- What would happen for the external applications if the logical schema were dependent on the physical schema? 3- Data Manipulation Language (DML) can be divided into two types. a. What are these types? b. Which one is easier to learn? which one provides more freedom in displaying query results?

Answer rating: 100% (QA)

1 Two disadvantages of building applications directly on top of file systems a Data Redundancy File ... View the full answer