I just tried sqlite. It is ultra-light and support SQL commands. Just try this $ sqlite3 test.db SQLite version 3.26.0 2018-12-01 12:34:55 Enter ".help" for usage hints. sqlite> create table t(x number); sqlite> insert into t values(1); sqlite> select * from t; 1 sqlite> $ du -h test.db 8.0K test.db I just created a database, […]