适用于CSV文件的快速免费桌面SQL工具

I have a bunch of pretty large CSV (comma separated values) files and I want to analyze them. SQL queries are ideal for this. So far I have been using MS Access to import the CSV files and execute queries on them. However, in addition to having a very bad SQL editor and having stupid arbitrary rules about when a query/table can be opened/edited/deleted, it is extremely slow. I can live with initial slowness when executing a query, but I really hate that it seems to re-execute it whenever I try to sort the table on another column, wait 5 minutes, or try to scroll.I have a bunch of pretty large CSV (comma separ