MySQL - The world's most popular open source database
Apache Doris - Apache Doris is an open-source real-time data warehouse for big data analytics.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
ClickHouse - ClickHouse is an open-source column-oriented database management system that allows generating analytical data reports in real time.
SQLite - SQLite Home Page
OceanBase - Unlimited scalable distributed database for data intensive transaction & real-time operational analytics workload, with ultra fast performance of maintaining the world record of both TPC-C and TPC-H benchmark tests.