Question

The company Microsoft could be referred as ‘microsoft’, ‘ms’ or ‘m$’ etc. We may say these names are alias to one single identity. If you want to store the ‘alias’ relationship, you might have to do it as the following pairs

microsoft      ms   ms             microsoft  microsoft      m$  m$             microsoft  ms             m$  m$             ms 

Or maybe there’s a better approach?

Answer 1

You can accomplish this with a ‘TAG’ schema.

interest -------- iPK value  junction --------- iPK aPK  alias ------- aPK value