Does Not Exist using Multiple Columns - tsql

Question

I am trying to find all records in my #TempTable that are not in the staging table.
Its important to note that the comparison needs to take place over 16 fields.
I have tried several combinations and nothing seems to work.
SELECT CustomerAccountNo FROM #TempTable
WHERE NOT EXISTS
(SELECT e.[CustomerAccountNo] ,
e.[MeterNo] ,
e.[CustomerName1] ,
e.[ServiceAddress1] ,
e.[ServiceAddress2] ,
e.[ServiceCity] ,
e.[ServiceState] ,
e.[ServiceZip] ,
e.[BillingAddress1] ,
e.[BillingAddress2] ,
e.[BillingAddress3] ,
e.[BillingCity] ,
e.[BillingState] ,
e.[BillingZip] ,
e.[BillingZip4] ,
e.[PrimaryPhoneNumber] FROM #TempTable e
JOIN dbo.Staging s
ON e.CustomerAccountNo = s.CustomerAccountNo AND
e.MeterNo = s.MeterNo AND
e.CustomerName1 = s.CustomerName1 AND
e.ServiceAddress1 = s.ServiceAddress1 AND
e.ServiceAddress2 = s.ServiceAddress2 AND
e.ServiceCity = s.ServiceCity AND
e.ServiceState = s.ServiceState AND
e.ServiceZip = s.ServiceZip AND
e.BillingAddress1 = s.BillingAddress1 AND
e.BillingAddress2 = s.BillingAddress2 AND
e.BillingAddress3 = s.BillingAddress3 AND
e.BillingCity = s.BillingCity AND
e.BillingState = s.BillingState AND
e.BillingZip = s.BillingZip AND
e.BillingZip4 = s.BillingZip4 AND
e.PrimaryPhoneNumber= s.PrimaryPhoneNumber
)

Answer 1

Instead of a JOIN, try using Except.
SELECT CustomerAccountNo, MeterNo -- and so on
FROM #TempTable
EXCEPT
SELECT CustomerAccountNo, MeterNo -- and so on
FROM Staging

Answer 2

Just do a join and look for null. Like this
SELECT e.*
FROM #TempTable e
LEFT JOIN dbo.Staging s
ON e.CustomerAccountNo = s.CustomerAccountNo AND
e.MeterNo = s.MeterNo AND
e.CustomerName1 = s.CustomerName1 AND
e.ServiceAddress1 = s.ServiceAddress1 AND
e.ServiceAddress2 = s.ServiceAddress2 AND
e.ServiceCity = s.ServiceCity AND
e.ServiceState = s.ServiceState AND
e.ServiceZip = s.ServiceZip AND
e.BillingAddress1 = s.BillingAddress1 AND
e.BillingAddress2 = s.BillingAddress2 AND
e.BillingAddress3 = s.BillingAddress3 AND
e.BillingCity = s.BillingCity AND
e.BillingState = s.BillingState AND
e.BillingZip = s.BillingZip AND
e.BillingZip4 = s.BillingZip4 AND
e.PrimaryPhoneNumber= s.PrimaryPhoneNumb
WHERE s.CustomerAccountNo is null

Answer 3

You should provide more detailed circumstance to get correct answer.
Clearly, you don't have any connection between your FROM clause and WHERE clause so the query will return all.
Try this one:
SELECT CustomerAccountNo FROM #TempTable t
WHERE NOT EXISTS
(SELECT 1 FROM dbo.Staging s WHERE
t.CustomerAccountNo = s.CustomerAccountNo AND
t.MeterNo = s.MeterNo AND
t.CustomerName1 = s.CustomerName1 AND
t.ServiceAddress1 = s.ServiceAddress1 AND
t.ServiceAddress2 = s.ServiceAddress2 AND
t.ServiceCity = s.ServiceCity AND
t.ServiceState = s.ServiceState AND
t.ServiceZip = s.ServiceZip AND
t.BillingAddress1 = s.BillingAddress1 AND
t.BillingAddress2 = s.BillingAddress2 AND
t.BillingAddress3 = s.BillingAddress3 AND
t.BillingCity = s.BillingCity AND
t.BillingState = s.BillingState AND
t.BillingZip = s.BillingZip AND
t.BillingZip4 = s.BillingZip4 AND
t.PrimaryPhoneNumber= s.PrimaryPhoneNumber
)