ON-LINE DATABASES
An on-line database is a database accessible from a network,including internet.It differs from a local database,held in an individual computer or its attached storage.
This is a simple screen in a database ---------->
Advance screen in a database ------------------->
Simple screen ----------------------------------->
Advantages of on-line database
- It means all of the information is together.
- The information can be portable if on a laptop.
- The information is easy to access at any time.
- It's more easily retrievable.
- Many people can access the same database at the same time.
- Improved data security.
- Reduced data entry, storage, and retrieval costs.
Disadvantages of on-line database
- Database systems are complex, difficult, and time-consuming to design.
- Initial training required for all programmers and users.
- Suitable hardware and software start-up costs.
- A longer running time for individual applications.