Multiple choice general knowledge science & technology

Which of the following is an Open Source Database?

  1. Ingress

  2. PostgreSQL

  3. MySql

  4. All of the Above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ingress, PostgreSQL, and MySQL are all open source databases. Ingress was one of the earliest open source databases, while PostgreSQL and MySQL remain among the most widely used open source databases today.

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