What database management system did you use in your previous project?

In my previous project, I used the PostgreSQL database management system. It is well-suited for projects requiring reliability, support for complex queries, and scalability.

Example of usage with Python via the psycopg2 library:

import psycopg2

conn = psycopg2.connect(dbname="mydb", user="user", password="pass", host="localhost")
cursor = conn.cursor()
cursor.execute('SELECT * FROM users WHERE active = TRUE;')
rows = cursor.fetchall()
for row in rows:
    print(row)
conn.close()

I also have experience working with MySQL and SQLite in small projects.