cql

cql(1) applies C style query expressions to flat database files. It is a lightweight standalone program that fills the gap between grep(1) and perl(1) on the low end and read/write transaction systems on the high end. cql - A Flat File Database Query Language is the original USENIX paper, and A cql Tutorial is a tutorial introduction by Don Caldwell.


Glenn Fowler
Information and Software Systems Research
AT&T Labs Research
Florham Park NJ
February 09, 2006