03/20/2014: This file contains the extern variable declarations.
03/20/2014: File containing function prototypes.
03/20/2014: This file contains the functions to process each query. The completed queries are, nattr, tuplen and infattr.
03/20/2014: This file contains the global variable declarations.
03/20/2014: File containing the constant definitions.
03/20/2014: Add function calls to query functions.