chapter 8

chapter 8

1. a database is an organised collection of related data

2. a database allows you to find information easily quickly .

3. benefits of using a database :fast access to the data ,easy editing of data ,validation of data ,easy production of reports

4. with a database you can :add new data ,change or delete data, search the data

5. a key filed uniquely identifies each record .

6. data can be validation using :range check, type check length check, lookup check ,picture or format check ,input mask, presence check

7. a query or search