Question

What are different types of databases?
structured semi structured and unstructured databases
text, image, and video databases
local, cloud, and hybird databases
personal, commercial, and government databases
which one is the answer

Answer 1

The classification of databases can vary based on different criteria. Among the options you've provided, the most commonly accepted types of databases based on data structure are:

1. **Structured, Semi-structured, and Unstructured Databases**: This classification is based on how the data is organized.
- **Structured databases** use a fixed schema (like relational databases with tables).
- **Semi-structured databases** have some organizational properties (like XML or JSON) but do not strictly adhere to a fixed schema.
- **Unstructured databases** do not have a predefined format (like text files or multimedia files).

While the other classifications are also valid and employed in various contexts (e.g., by deployment model, by type of content, or by user type), the first category you provided is fundamental in terms of how data is handled and represented.

So, the best answer among the given options would be **structured, semi-structured, and unstructured databases**.