> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Internal models approach datastore definition

This section provides the following:

* A table of fields for each store within the Internal Models Approach
  datastore definition.

* Indicator showing whether the fields are KEY or NULLABLE, and the field type.

* A column called **Cube Field** indicating whether or not the datastore field is selected for the cube.