could you provide a sample structure for that?
Is there a surrogate key? If you have nothing else, that would be the best option (figure 4.9 on page 97 of our book "Building a Scalable Data Warehouse
with Data Vault
However, be aware to not using this strategy
in general. This is the least desirable option of many. Therefore, taking a look at your structure would be helpful.
Hope that helps.