CTP108 - Computer Programming for Business FORM AND DATABASE DESIGN Submitted to :Tolga BAYCAN Submitted by : A.Korhan ZIVRALI,Can MENTEŞ 10.12.2007.

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Presentation transcript:

CTP108 - Computer Programming for Business FORM AND DATABASE DESIGN Submitted to :Tolga BAYCAN Submitted by : A.Korhan ZIVRALI,Can MENTEŞ

GENERAL INTRODUCTION

WHAT IS DATABASE ? A collection of data Types of database I) Flat-File II) Relational

WHAT IS DATABASE DESIGN? Major aims of design I) Helps to reach the data easily II) Helps us to understand database

Defining the System Parameters Defining the Work Processes Building the Conceptual Data Model Preparing the Database Schema Designing the User Interface DESIGN PROCESS

DATABASE TABLES: Rows and Columns Represents a single data value Must conform

DATABASE QUERIES: Request for info from database Intended to return a list of devices

WHAT IS DATABASE FORM? It facilitate database data entry. It has retrieval operations.

PRIMARY KEY: Unique identifier Avoding meaningful primary key Never change

NORMALIZATION What is Normalisation? Normalistion is a process of organising the data in database in more efficent way.

FIRST NORMAL FORM Eliminate Repeating Groups

SECOND NORMAL FORM Eliminate Redundant Data

THIRD NORMAL FORM Eliminate Columns Not Dependent On Key

WHAT CAN A FORM DESIGNER DO? Get the point.

Add help information

Provide a clear confirmation message

WARNİNG MESSAGE