EPMDocument Relationship

Hello Everyone,

I was wondering if anyone could tell me what the relationship between the EPMDocumentMaster number in the database and the EPMDocument number in the url when you are viewing parts.

When i search the database for the EPMDocument number found at the end of the url:

"wt.epm.EPMDocument:123456789"

Nothing appears with that number in the EPMDocument, DocumentMaster, or DocumentMasterKey tables. Also when I search for the document CADNAME in the EPMDocumentMaster the IDA2A2 number is not that same so I was just wondering what links these two numbers together? Where does windchill get this number in the url from when looking up parts?

Thanks

Darcy