Part 5/7:
An invaluable feature of the database functions is their ability to incorporate wildcards. For example, to calculate amounts where names begin with 'B', users can use wildcard characters in their criteria. This not only simplifies the data aggregation process but also adds versatility in how users manipulate their datasets.
Additionally, the DGET function is a standout among database functions as it retrieves a single value based on specific criteria. This can be particularly useful for determining amounts for a specific invoice number, much like traditional lookup functions. However, it's worth noting that DGET throws a #NUM error when more than one record matches the criteria, contrasting with lookup functions that simply return the first match found.