What is DataBase

lang use sql for databse ,,,,

design::: how many tables wat r primary key, wat should be the fulnctionality……………

entity realtion model:::::::when we depect something from real world to a paper taht s model

normalization::::::: to decompose a table in to sub table …..we will do here up to third normal

form which  is BCNF biyce code normal form…………

Ms ACCESS ::

queries .

form .

table .

report .

modules .

macro .

Threats  ::

managment sys 's functions  

RDBMS::: relational dbms

USES OF DATA BASE SYS:::

BANKS

NET e, g yahoo has users data base

ATM

NADRA

on line shopping check credit card data base..

supermarket the barcode data base.

travel agent access data bases of flights & holidays inns..

Library

insurance

university