Database Management

System

DBMS

• A software package that allows users to create, retrieve and modify databases.

• A database is a collection of related tables.• A table is a collection of related records.• A record consists of a number of fields.• A field may be a number, a string, a date, or

a boolean value etc.

Features

• Database – collection of table

• Table – field name, type, width, key field

• Manipulation – delete, append, edit/modify

• Viewing – order, filter, index

• Reporting – label, report, order, filter

• Searching – go to record, locate, seek

• Query – query wizard, query language(SQL)

Create Tables

• Create a table and specify the – Field Name– Type– Width – Index

Viewing and Editing

• Browse– Edit/change content– Filter– Order– Selected fields

Modify data in a table

• Edit

• Append

• Delete (logically) – and remove(physically)– scope

Table Structure

• Modify table structure– Field name– Field type– Field width– Insert field– Delete field

Query

• Query wizard – Create query– Select table– Select fields– Filter records– Sort records– Limit records– Save query

• SQL (Structured Query Language)

Report

• Create report/labels – wizard

• Select fields

• Select style

• Select layout

• Sort records

• Save

• Run report