# retrospective snapshot view

## retrospective snapshot view

A snapshot view for a specified snapshot date.

#### Notes

* A snapshot view is generated by filtering a full view so that it only includes the most recent version of each SNOMED CT component as at a specified date.
* Access to a current snapshot view is essential for data entry. However, it is also useful to be able to set alternative snapshot dates for some types of analysis. For example, to determine whether current and previous results of similar queries have been affected by more recent enhancements to the terminology.

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