What makes a relational database the most popular type of data storage systems?

Relational databases (RDBs) are popular due to their structure and capabilities:

• Strict data structure: data is stored in tables with clearly defined columns and data types, simplifying organization and management.
• SQL language: a standardized query language that makes it easy to create, read, update, and delete data.
• Transaction support: ensures data integrity and consistency during concurrent operations.
• Relationships between tables: complex relationships can be modeled using primary and foreign keys.
• Optimization and indexing: enable fast query execution even on large volumes of data.

These features make relational databases suitable for a wide range of applications, from small to large enterprise systems.