Hi all,
After I went through several DV2.0 books and articles and searched for Zero Keys I found that there are 2 options.
- D.Lindstedt and P. Cuba - sugget using -1, -2 constants and their hash values to be added to hubs and links
- Scalefree in their blog (https://www.scalefree.com/scalefree-newsletter/implementing-data-vault-2-0-zero-keys/ ) and trainings suggest (missing), (error) business keys and 0x0, 0xF hashes instead
To me ScaleFree proposal looks easier to use in code and later in queries.
What’s your experience, does it matter which option we choose or these are equivalent and the matter of taste?
Regards,
Marcin