Introduction to Relational Databases
*Introduction
‡ Database ± collection of persistent data ‡ Database Management System (DBMS) ± software system that supports creation, population, and querying of a database
*Relational Database
‡ Relational Database Management System (RDBMS)
± Consists of a number of tables and single schema (definition of tables and attributes) ± Students (sid, name, login, age, gpa) Students identifies the table sid, name, login, age, gpa identify attributes sid is primary key
*An Example Table
‡ Students (sid: string, name: string, login: string, age: integer, gpa: r
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