Possible, but not advisable. Requires a fair amount of code to get data in and out.
If that's how your tables really look I'd advise you to research db normalization as it will help immensely if you get it right. You are repeating data in tables, have no primary keys, no related foreign keys and worse, you want to concatenate values into a field for no good reason (you might think you have one but I suspect it isn't good enough). In your example, you would not be able to get a sum of hours for any one tech - unless you plan on keeping the same data somewhere else in the proper fashion, which would just be another example of repeating data in other tables. Maybe take a look at these or find ones you like better:
Normalization Parts I, II, III, IV, and V
http://rogersaccessblog.blogspot.com...on-part-i.html
and/or
http://holowczak.com/database-normalization/
Entity-Relationship Diagramming: Part I, II, III and IV
http://rogersaccessblog.blogspot.com...ng-part-i.html
How do I Create an Application in Microsoft Access?
http://rogersaccessblog.blogspot.com...cation-in.html
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