Using the ___________ function in a field containing a null value will result in a user-defined value or a default value of zero.

Question

BlackTom AI · Accepted Answer

In this question, we’re looking for a function that converts null values into a user-defined value or a default of zero when used in a field with nulls.
Option 1: 'Group By ()' is a clause used in SQL queries to aggregate rows based on shared values. It does not alter or replace null values within a field, so it does not fulfill the requirement.
Option 2: 'IFERROR()' handles errors by providing an alternative result when an expression evaluates to an error. While it can manage some problematic results, it is not specifically designed to replace nulls with a defined value like zero.
Option 3: 'SUM()' aggregates numeric values, and when encountering nulls, most implementations ignore them rather than substituting a value. Therefore, it won’t automatically replace nulls with a user-defined value or zero.
Option 4: 'Nz()' is a function traditionally used in environments like Access that converts Null values to another specified value (for example, Nz(field, 0) would turn nulls into 0). This directly matches the described behavior of replacing nulls with a provided value or zero when needed.
Thus, the option that satisfies the described behavior is Nz().

Using the ___________ function in a field containing a null value will result in a user-defined value or a default value of zero.

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