I have a VB.NET application and I need a query that will group tags that have identical sets of 3 codes. But I only want to group a maximum of 2 tags (one from each location). Once grouped I would like to compare the data associated with each tag.
In the pic I've drawn a red box around the tags that need to be grouped based on them having an identical composite code (code & code2 & code3). I drew dotted lines to match each tag with another tag (if available) from the opposite location within the group.