Introduction to Not Only SQL

PostgreSQL is a solid ACID relational database management system and uses the SQL language to process, manage, and query the data. Its main purpose is to guarantee a consistent view of a business as a whole at all times while applications are concurrently active in reading and writing modes of operation.

To achieve a strong level of consistency, PostgreSQL needs the application designers to also design a solid data model and, at times, to think about concurrency issues.

Million users issue

In recent years, big players in the industry faced a new scale of business never ...