If you're open to PHP, I found the perfect tool for myself. The Laravel framework has an ORM called Eloquent. Usually it maps models to database tables (hence O

If you're open to PHP, I found the perfect tool for myself. The Laravel framework has an ORM called Eloquent. Usually it maps models to database tables (hence ORM) but you can also bring it to get its rows from a CSV which it then maps into an in-memory sqlite database. You can then work with it through the ORMs methods, with regular SQL or with external tools like Tinkerwell that just displays them in a tabular fashion.