[AccessD] Access and SQL Server

When does a "many to many linking table" cease to be a "simply a many to many linking 
table"    How about when you are linking chemicals and formulas for a product formula and 
have to store a quantity as well?

What about if you subsequently need to store info such as the start date of the link 
relationship.

Do you then add a PK?

-- 
Stuart

On 2 Mar 2011 at 8:04, Jim Dettman wrote:

> table.  As this is simply a many to many linking table, no other
> fields would ever be added to it.
>