Here is a sample of where NZ goes and why.
I created a table with the following design(see graphic
There is NO DATA in the Table
I then created a query in the SQL View of the query wizard. Since there is no data in the table, there is really nothing to Sum. So in my query, I Sum(fld1) and put a label (SumResult) on the calculation; also I use the NZ function on Sum(fld1), to display a 0 if there is no value. This is Nz(Sum(fld1),0) and I have added a label(ShowMeAZero) on this calculation.
Code:
SELECT Sum([fld1]) AS SumResult, Nz(Sum(fld1),0) AS ShowMeAZero
FROM tblStampman;
The result of the query is
Good luck with your project.
Post posting: I see you responded - or gave up - while I was creating a sample to show you where NZ goes in a query and what the result of NZ is. This is a basic query. It doesn't get much easier than this.
I suggest you watch a few youtube videos, or do some tutorials at RogersAccessLibrary
Approach this whole thing as a learning opportunity - not something to be feared.
Again, sincere good luck with your project.