1 Why Learn About Database Systems? Database systems process and organize large amounts of data Examples –Marketing manager can access customer data –Corporate lawyer can access past cases and opinions What Sysoft eRFP can do?

2 Introduction Database: an organized collection of data Database management system (DBMS): group of programs to manage database –Manipulates database –Provides an interface between database and the user of the database and other application programs Database administrator (DBA): skilled IS professional who directs all activities related to an organization’s database

3 Tables, Fields, Rows Column Tables Columns Rows Access Demonstration from Sysoft eRFP Tables

4 Manipulating Data Selecting: eliminates rows according to criteria Projecting: eliminates columns in a table Joining: combines two or more tables Inserting Deleting How SQL – Structured Query Language Works?

5 Creating and Modifying the Database Data definition language (DDL) –Collection of instructions/commands that define and describe data and data relationships in a database –Allows database creator to describe the data and the data relationships that are to be contained in the schema Data dictionary: a detailed description of all the data used in the database

6 Popular Database Management Systems Popular DBMSs for end users: Microsoft Access and FileMaker Pro Entire market includes databases by IBM, Oracle, and Microsoft Examples of open-source database systems: PostgreSQL and MySQL Many traditional database programs are now available on open-source operating systems

7 Special-Purpose Database Systems Sysoft eRFP Database

8 Business Intelligence Business intelligence (BI): gathering the right information in a timely manner and usable form and analyzing it to have a positive impact on business –Turns data into useful information that is then distributed throughout an enterprise How Sysoft eRFP provide Business Intelligence?