What determines the starting point for calculating a dataset view in Foundry?

The starting point for calculating a dataset view in Foundry is determined by the latest SNAPSHOT transaction before that specific point in time. A SNAPSHOT transaction captures the complete state of a dataset at a given moment, reflecting all data records, while also incorporating any previous changes. This allows for an accurate representation of the dataset as it was at that time, ensuring that analysis and insights derived from the dataset are based on a complete view.

When querying or analyzing historical data, using the latest SNAPSHOT transaction ensures that you have a reliable starting point that correctly represents the dataset's state up to the specified time. This is crucial for maintaining data integrity and clarity when examining changes over time.

In contrast, other types of transactions, such as APPEND (which adds new records) or DELETE (which removes records), do not provide a comprehensive snapshot of the dataset at a specific moment, making them less suitable for defining the starting point for dataset calculations. The earliest transaction also does not represent the most current state prior to the desired timeframe, leading to potential inaccuracies in data analysis. Therefore, the latest SNAPSHOT transaction is the most reliable determinant for establishing a dataset view in Foundry.