Flat File
A flat file is a simple data storage format that stores data in a plain text file, typically with one record per line and fields separated by delimiters like commas or tabs. It lacks the complex structures of relational databases, such as tables, relationships, or schemas, making it easy to create and read with basic tools. Common examples include CSV (Comma-Separated Values) and TSV (Tab-Separated Values) files.
Developers should use flat files for lightweight data storage, data exchange between systems, or when dealing with small datasets that don't require complex queries or transactions. They are ideal for configuration files, log storage, and importing/exporting data in applications where simplicity and portability are prioritized over advanced database features.