Many SQL tools that use JDBC have support for CSV, TSV and other table-in-a-file data stores (e.g. DBF). I use DBeaver for nearly everything SQL. It is also op

Many SQL tools that use JDBC have support for CSV, TSV and other table-in-a-file data stores (e.g. DBF). I use DBeaver for nearly everything SQL. It is also open-source. Create a New Database connection, choose CSV, choose the folder with the CSV files, and you will get a database connection to a "database" where each CSV file is a table.