How does GILS relate to SQL databases?
SQL (Structured Query Language) operates on relational databases. A relational database is one of the mechanisms that can be used to store locator records behind a GILS-compliant server. In fact, many implementations of GILS employ a gateway from ANSI Z39.50/GILS to SQL using the ODBC mechanism. (See for a discussion of Z39.50/ODBC Gateways.