Is Oracle database widely used in the USA?

And what you think about the Oracle database? Now, when I look in the available positions in Turkey here is what I see. Oracle, 503 positions. PostgreSQL, 17 positions. MySQL, 158 positions. SQL Server, 372 positions. MariaDB, 0 position. NoSQL, 18 positions. Redis, 9 positions. Some people say that in West USA no one uses Oracle.