Ok, here it goes:
Got these tables:
CompanyTbl:
CompanyID (PK)
Name
Street
etc.
NAICS1(this is a standard industrial code, a 6 digit number telling about their product/service)
NAICS2
NAICS...6 (company can have 1-6 NAICS codes)
A layman has no clue what these NAICS code are, so each and...