In Prism, which operation would you use to update existing rows without creating duplicates?

In Prism, the operation that is utilized to update existing rows without creating duplicates is referred to as 'Upsert.' This operation combines the features of both the insert and update operations, allowing you to either insert a new row if it does not already exist or update an existing row if it does. The key here is that 'upsert' effectively checks for the presence of the row and ensures that no duplicate entries are created during the process.

This is particularly useful in scenarios where data integrity must be maintained, and you want to ensure that updates to existing records keep the dataset clean and accurate. Hence, 'Upsert' provides a straightforward and efficient approach for handling data modifications in a way that respects the uniqueness of existing rows.

The other available operations serve different purposes. For instance, 'Insert' is solely for adding new rows, and 'Update' exclusively modifies existing rows without checking for duplicates, which could lead to potential data integrity issues. 'Replace' typically refers to removing an existing row and adding a new one, which again does not align with the objective of updating without creating duplicates.