Question

1. Explain the types of databases
2. Write the advantages of a database system

Answer 1

Answer:

Improved data sharing. ...

Improved data security. ...

Better data integration. ...

Minimized data inconsistency. ...

Improved data access. ...

Improved decision making. ...

Increased end-user productivity.

Answer 2

1) types of databases

• Centralized database.
• Cloud database.
• Commercial database.
• Distributed database.
• End-user database.
• Graph database.
• Object-oriented database.
• NoSQL database.

2) advantages of a database system

• Reduced data redundancy.
• Reduced updating errors and increased consistency.
• Greater data integrity and independence from applications programs.
• Improved data access to users through use of host and query languages.
• Improved data security.
• Reduced data entry, storage, and retrieval costs.