M.P. Johnson, DBMS, Stern/NYU, Sp2004
What Is a Database?
A very large, integrated collection of data.
Models real-world enterprise.
Entities (e.g., students, courses, instructors, TAs)
Relationships (e.g., Joe is taking C20.0046)
George is currently taking C20.0046
Dick is currently teaching C20.0046
Condi is currently TA-ing C20.0046 but took it last semester
A Database Management System (DBMS) is a software package designed to store and manage databases.