Can an SQL query be used to ask Cyc a question?
No. Since the SQL model presumes a relational abstraction consisting of tables with rows and columns, it does not translate well into the Sea of Assertions abstraction (or even the older Frame based abstraction). The Cyc model is much richer than the SQL model, and thus too many distinctions with the knowledge base probably could not be expressed. In essence, an SQL query would be too coarse grained to pose an adequately meaningful question to the Cyc knowledge base. (However, it is possible that object-oriented versions of SQL would be capable of posing meaningful questions to Cyc).