What is the result of performing a Full Retrieval?

Performing a Full Retrieval in a data context, such as with AVEVA Historian Server, results in obtaining a complete set of all data entries that have been recorded, including duplicates. This type of retrieval is designed to ensure that every instance of data for the specified time period is captured, which is critical for thorough analysis, reporting, and historical reference.

The rationale behind this approach is that in many applications, especially in process industries where data can vary frequently, every data point is significant. Collecting every entry allows analysts to gain insights into trends, patterns, and anomalies over time. This can be particularly important for detailed investigations or when assessing system performance and behavior.

In contrast, maximum values for a specified period, only distinct values, or filtered data based on specific criteria would provide a narrowed down view of the dataset. While these methods may serve specific analytical needs, they do not fulfill the comprehensive data gathering purpose that Full Retrieval accomplishes.