1. A method comprising: representing at least one continuous-query-language (“CQL”) concept as a Structured Query Language (“SQL”) table, each of the at least one CQL concepts being a CQL table, a CQL stream, or a CQL relation; and translating a CQL operator into at least one SQL statement, wherein input to the CQL operator comprises at least one of the represented CQL concepts, wherein the CQL operator produces at least one of the represented CQL concepts as output, wherein the at least one SQL statement operates on at least one SQL table representing the input to the CQL operator, and wherein the at least one SQL statement produces at least one SQL table representing the output of the CQL operator.