What database management systems have you already worked with?

Questions about database management systems (DBMS) you have worked with involve listing specific products and briefly describing your experience.

Examples of popular DBMS:

• MySQL — often used for web applications, supports SQL.
• PostgreSQL — a powerful object-relational DBMS with advanced features.
• Microsoft SQL Server — an enterprise DBMS from Microsoft.
• Oracle Database — a large commercial DBMS with rich functionality.
• SQLite — a lightweight embedded DBMS.

Example answer: "I have worked with MySQL and PostgreSQL, creating and optimizing queries, configuring indexes, and performing backups. I also have experience testing applications that use Microsoft SQL Server."