1. A computer-implemented method for use in maintaining currency of a projection index of a plurality of database objects, said computer-implemented method comprising: creating the projection index representative of a connection between a first database object of the plurality of database objects and at least a second database object of the plurality of database objects; determining an entity dependency between the first database object and at least the second database object; determining a path dependency between the first database object and at least the second database object; and updating the projection index in response to a modification of at least one of the entity dependency and the path dependency.