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Scalefree International GmbH

Company logo of Scalefree International GmbH
Scalefree International GmbH

Implementing Data Vault 2.0 Zero Keys

As discussed in the previous part of this series, a ghost record is a dummy record in satellite entities containing default values. Simply put, zero keys are the entry in each hub and link entity that is a counterpart to the satellite’s ghost record containing its hash key. In this manner, the term “zero key” is oftentimes used to describe the ghost record’s hash key, which might show up in other Data Vault entities such as in Point-in-Time (PIT) tables or links.

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