Abstract: A method for obtaining query response data by a relational database management system (RDBMS) is provided. The method receives a user input query, by a processor associated with the RDBMS, wherein the user input query comprises a query request for a set of data; formats the user input query into a second query language suitable for communication between the RDBMS and a query response interface associated with a second data storage external to the RDBMS, by the processor, to generate a reformatted user input query, wherein the RDBMS is configured to perform query operations using an n-ary tree format, and wherein the query response interface is configured to perform query operations using a binary tree format consisting of two child nodes per non-terminal node of a binary tree; and transmits the reformatted user input query to the query response interface, via a communication device communicatively coupled to the processor.