I have two tables. One for previous time in make & model and one for adding new time (flightdata). I have a query that will get the sum of time from flightdata for each make & model and another query that adds the make&modelnewtotals total to the time from previousmake&model. The problem I...
I have tried to calculate the sum of two fields with little success. I have been able to combine the numbers in two fields by using
SELECT [hours data].hours AS hours, [hours data].[total hours], Sum(Nz([hours],0)+Nz([total hours],0)) AS total
FROM [hours data]
GROUP BY [hours data].hours...
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