duckdb DuckDB is an in-process SQL OLAP Database Management System
DuckDB is a high-performance analytical database system. It is designed to be fast, reliable and easy to use. DuckDB provides a rich SQL dialect, with support far beyond basic SQL. DuckDB supports arbitrary and nested correlated subqueries, window functions, collations, complex types (arrays, structs), and more. For more information on the goals of DuckDB, please refer to the Why DuckDB page on our website.
imports CSV easily
There is a wasm build! would be possible to use in NBA Stats - https://duckdb.org/2021/10/29/duckdb-wasm.html
duckdb is working on improving their SQL interface, as well as providing (in python) a dataframe-like interface:
SELECT * EXCLUDE is particularly nice