Which method is used to transform multi-instance fields into single-instance fields?

The method used to transform multi-instance fields into single-instance fields is known as "Explode." This process takes a set of data that includes repeated instances (such as multiple rows for the same entity) and breaks it down so that each instance can be treated individually in the data set.

When you use the explode method, it effectively expands a single record with multi-instance fields into multiple records, each representing one of the instances. This is particularly useful when analyzing or reporting on data where you need to have distinct entries for each instance instead of aggregating them or keeping them in a single row.

For example, if you have a single employee record associated with multiple projects, using the explode method allows you to generate separate records for each project while associating them back to the same employee, thereby creating a more granular view of the data.

The other options represent different transformations but do not specifically relate to the process of converting multi-instance fields into single-instance fields. Flattening, for instance, generally refers to consolidating hierarchical structures into a single-level structure without necessarily breaking down multi-instance relationships. Splitting is typically concerned with dividing data based on defined criteria, while filtering involves removing data based on specific conditions. None of these methods achieve the same transformation characteristics as exploding