Just a small advice, do not refer to csv files as databases because it can't create confution, some people might assume you are talking about a database engine (e.g. Postgresql, MySQL, Microsoft SQL, etc) and not just a simple csv file.
Also, If your question's been answered (even by you!), would you mind choosing a solution? It helps other people see which questions still need help, or find solutions if they have similar problems. Here’s how to do it: