1. A method comprising performing a machine-executed operation involving instructions, wherein the machine-executed operation is at least one of: A) sending said instructions over transmission media; B) receiving said instructions over transmission media; C) storing said instructions onto a machine-readable storage medium; and D) executing the instructions; wherein said instructions are instructions which, when executed by one or more processors, cause: receiving, at a database server, a request to perform a file system operation involving a link from a source resource to a target resource, wherein the source resource is stored within a repository implemented by a database; and the server performing the file system operation by accessing, in the database, one or more link records to carry out the request file system operation.