SQL is a standard language, but it is used by many different database systems.
Each database system follows SQL rules but may have some additional features.
Developers choose a database depending on project size, performance, and company requirements.
MySQL is one of the most popular SQL databases in the world.
It is widely used in websites, web applications, and content management systems.
MySQL is fast, reliable, and easy to learn for beginners.
PostgreSQL is an advanced SQL database system.
It is known for strong data integrity, security, and performance.
Many enterprise and large-scale applications use PostgreSQL.
Oracle Database is used by large organizations and government systems.
It is powerful and designed for handling massive amounts of data.
Oracle is commonly used in banking, telecom, and enterprise software.
Microsoft SQL Server is widely used in Windows-based applications.
It integrates well with .NET technologies and enterprise systems.
All these databases use SQL as their core language.