All of the following are categories or techniques of data transformation during the building of a data warehouse, except ____.
A) coding scheme conversion
B) unit of measure conversion
C) aggregation
D) questionable data conversion
E) combining values from different attributes in transactional databases into a single attribute in the data warehouse

Question

Quizplus · Accepted Answer

All of the other choices (coding scheme conversion, unit of measure conversion, aggregation, and combining values from different attributes) are categories or techniques of data transformation commonly used during the building of a data warehouse. "Questionable data conversion" is not a recognized category or technique in this context.

All of the Following Are Categories or Techniques of Data