6. In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.
The relational model for database management is a database model based on first-order predicate logic, first formulated and proposed in 1969 by E.F. Codd.
8. Database applications are seldom intended for use by a single user.
10. Structured Query Language (SQL) is an internationally recognized standard language that is understood by all commercial database management system products.