Modify Query

Hi,

I create one database and the query and the forms for my clients in the sharing drive. Every time, the user open the form and select the field names and then execute the query depend on which fields the user select on the form, and then output to the screen. Here is the question, if there are multi user access the same form/query, one user pickup 3 fields to run the query, and another user pickup 5 fields to run the query. Becuase one user select 3 field names on the form, and then the code will modify the query contents, another user select the 6 field names on the form, and then the code will modify the query contents.

So, will the query affect each other?