Answer :
The primary difference between relational databases and flat files lies in their structure and organization:
1. **Relational Databases**:
- Relational databases store data in a structured way using tables.
- They consist of multiple tables that are related to each other through keys.
- Each table contains rows (records) and columns (fields) to represent the data.
- Data is stored in a structured format to establish relationships between different pieces of information.
- Examples of relational databases include MySQL, PostgreSQL, Oracle, and SQL Server.
2. **Flat Files**:
- Flat files store data in a more simplistic, unstructured manner.
- They are typically text files that contain data with a specific delimiter separating the fields.
- Flat files do not have a defined schema like relational databases; each line represents a record, and each field is separated by a delimiter like a comma or tab.
- They are commonly used for small-scale data storage or for simple data exchange.
- Examples of flat files include CSV (Comma-Separated Values) files and text files.
In summary, relational databases use a structured approach with tables, relationships, and a defined schema, while flat files are simpler, unstructured files with data stored in a flat format without relationships defined between different pieces of information.
