/usr/lib/libdcmqrdb.so.2 is in libdcmtk2 3.6.0-15.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libdcmqrdb.so.2.0.0
/usr/lib/libdcmqrdb.so.2.0.0