Here is where I'm lost let's say I have two tables in my query. Employees and Contacts. I can't seem to see the files that include null values in the contacts. I want to see all the records of employees even the ones that have no contact data... how do I do that?
You'll need to look at your JOIN type, you probably have it as the default one which says where data matches, you'll want to choose the one that says where data exists in your Employees but not necessarily in Contacts. Double click on the join line and take a look at the options.