Upgrading to the RPM package included in RH 7.0 initializes the RPM databse. While upgrading (two) machines that had RedHat 6.2 + Helix Gnome (includes an updated RPM package with DB3) to RedHat 7.0, while updating the RPM package (Using command rpm -Uvh ), it initialized the RPM database, and "rpm -rebuilddb" didn't fix it.
*** This bug has been marked as a duplicate of 18159 ***