You can obtain Lotus Notes SQL 2.0 (2.04.0203) driver from the Lotus Web site.
Read the documentation that comes with it for an explanation of how Notes data maps to relational tables. You can easily map IQ tables to Notes forms.
See SQL Anywhere 11.0.1 > SQL Anywhere Server - SQL Usage > Remote Data and Bulk Operations > Server classes for remote data access > ODBC-based server classes > Server class odbc > Lotus Notes SQL 2.0.