update vs4tSwitchtimeMB set tstmtotime=0 where tstmtotime is null
GO
update vs4tSwitchtimeMB set tstmtotimeaddday=1 where tstmtotimeaddday is null
GO
update vs4tSwitchtimeMB set tstmfromtimeaddday=0 where tstmfromtimeaddday is null
GO
update vs4tSwitchtimeMB set tstmfromtime=0 where tstmfromtime is null
GO