What relational database management systems do you have experience with?

Work experience typically covers the following relational database management systems (RDBMS):

• MySQL/MariaDB: popular open-source RDBMS widely used for web applications.
• PostgreSQL: powerful object-relational RDBMS supporting advanced features such as JSON, full-text search.
• Microsoft SQL Server: enterprise RDBMS from Microsoft, often used in business applications.
• Oracle Database: scalable and reliable RDBMS used in large corporate systems.

Depending on the project and requirements, experience may include working with one or more of these systems, including configuration, query optimization, backup, and data recovery.