Christopher M. Pascucci Databases Christopher M. Pascucci

What is a Database a database is a collection of records stored in a computer in a systematic way, so that you to find useful information. Collection of all the data related to a particular topic or purpose -- for example, student data, customer data or product data. Most common type of database is a “Relational” database, which is a collection of related tables that share information.

Database Structure Database Table(s) Record(s) Field(s)

Database Structure Table Chris Pascucci Grad Student UPENN Joe Shmoe Undergrad Temple Jane Dough Undergrad Drexel Tom Jackson Grad Student Villanova Fields

Definitions Data Field Data Record A single piece of information Name, Age, City, State, Date, etc… Data Record A complete set of related data fields Student, Customer, Employee

Why Use A Database? To enter data quickly and easily that is stored for later use. Organize records in different and useful ways. Locate specific records quickly. Eliminate data. Create Queries. Create Reports.

Data Management Software Database Management Systems (DBMS) A collection of programs that enables you to enter, organize, and select data in a database. Examples: SQL Server Oracle Access

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