SELECT UNIQUE rp, ka, ac, lpc_acl
FROM printers
WHERE (ac != 0 OR lpc_acl != 0) AND rm in (SELECT m.mach_id FROM machine m, serverhosts sh
SELECT UNIQUE rp, ka, ac, lpc_acl
FROM printers
WHERE (ac != 0 OR lpc_acl != 0) AND rm in (SELECT m.mach_id FROM machine m, serverhosts sh