20. The system of claim 14 , wherein substituting the placeholders occurs only for placeholders having the mandatory designation.
14. A system directed to generating queries with an arbitrary number of input streams from a generic query template, comprising: a database; a data stream management system; a query manager; a processor, wherein the processor performs the steps of: sending a selected generic query template and at least one entered query input stream to the query manger, wherein the generic query template includes at least one predefined query string having placeholders at designated alterable field of the generic query, each placeholder of the generic query template having a mandatory designation or an optional designation; registering, with the query manager, the selected generic query template and the at least one entered query input stream; generating, with the query manager, at least one query output stream based on the registered generic query template and the at least one registered query input stream; loading, with the query manager, the registered generic query template with the at least one query output stream and the at least one registered query input stream; parsing, with the query manager, the loaded generic query template, comprising: retrieving, with the query manager, a query template orchestration configuration of the loaded generic query template from the database; and upon determining, with the query manager, that instructions are available in the query template orchestration configuration, executing, with the query manager, the instructions in the query template orchestration configuration, wherein each step of the instructions is executed for each of the at least one query input stream; forming a deployable query for instantiation within the data stream management system from substituting, within the query manager, the placeholders with the at least one query output stream and the at least one registered query input stream; and deploying the deployable query within the data stream management system for application against stream data.