1) Database is structured collection of information on specific subjects. We can think of a database as an electronic filing system.
2) An example of the database is a telephone book which contains records of names, addresses and contact numbers.
3) A database allows its contents to be easily accessed, updated, stored and retrieved.
4) Examples of database foftware are Microsoft Excel, Microsoft Access and SQL Server.
5) Benefits using of database is :
i) Minimises Data Redundancy
- Most data item stored in only one file. With a database there is no need to repeat recording the same data. This minimises data redundancy.
ii) Data Integrity Is Assured
- A database ensures that data is correct for all files. When a user modifies data in one of the files in a database, the same data will change automatically in all the files. This is called data integrity.
iii) Data Can Be Shared
- A database allows the ease of sharing data. Data can be shared over a network, by a whole organisation.
