database

If you already know some Python and SQL, look at database Python modules, like SQLAlchemy. Since there’s a lot of material on data science and Python on the web these days, that shouldn’t be a problem.

Begin with SQL server

sql means mysql?

On the difference between the terms SQL and MySQL: https://stackoverflow.com/questions/14840808/what-is-the-difference-between-sql-and-mysql

sql => Microsoft MySQL==>open source.