Here is a screen shot of both.
OK, no mystery here.
F-GRGC of Regional Airlines (ICAO: RAE) is using RA469ZY as a flight number, but IATA prefix RA isn't theirs (and even if it was, they should be using ICAO, not IATA codes). RA is the IATA code for Royal Nepal Airlines.
Likewise, F-GRPZ of CCM Airlines (ICAO: CCM) is using CC457NU as a Flight ID - CC is Air Atlanta Iceland's IATA code.
Nothing wrong with the database in this instance - it's down to the airlines concerned.