I Tried but both times running on same query,
DELETE Nz(tblDataentry.tktNo,""), Nz(tblDataentry.flightNo,""), Nz(tblDataentry.dateofTravel,""), Nz(tblDataentry.dest,""), Nz(tblDataentry.origin,"") FROM tblDataentry WHERE (((tblDataentry.tktNo) Is Null) OR ((tblDataentry.flightNo) Is Null) OR...