Which column in the Fact table is used to remove deleted data?

The appropriate column in the Fact table that is utilized to filter out deleted data is indeed MedicationOrderFact._IsDeleted. This column serves as an indicator to distinguish between active records and those that have been deleted or flagged in the system. When set to zero, it signifies that the data is current and should be included in analysis and reporting.

In a star schema used for data modeling, Fact tables contain metrics and measurements for analysis, while Dimensional tables contain descriptive attributes related to the data in the Fact table. The '_IsDeleted' column in the Fact table is essential because it allows users to maintain the integrity of their analyses by excluding records that are no longer relevant due to deletion. By specifically focusing on this Fact table column, users can achieve an accurate representation of the current data without being skewed by historical deletions.

In contrast, columns from Dimensional tables like PatientDim._IsDeleted, ProviderDim._IsDeleted, and MedicationDim._IsDeleted are important for their respective contexts but do not directly affect the metrics and facts represented in the MedicationOrderFact table. These measures in the Dimensional tables may help provide additional context to the status of entities, but they do not influence how facts are calculated or aggregated in the Fact table