SELECT [EMPLOYEE].[First Name], Time.DATE, Time.[REG HRS], Time.[JON'S], Time.[Task (SCC)], [EMPLOYEE].Grade, Time.[OVER TIME], Time.[COST CODES], Nz([task (scc)],"Mission") AS NewField, IIf(IsNull([reg hrs]),0,[reg hrs])+IIf(IsNull([over time]),0,[over time]) AS [Total Hours]
FROM [EMPLOYEE]...