Explanatory Question
Explain the difference between SUM() and SUMX().
Read the answer carefully and go through the related questions on the right side to improve your understanding of this topic.
| SUM() | SUMX() |
|---|---|
| Adds values from a column. | Evaluates an expression row by row. |
| Simple aggregation. | Iterator function. |
Total Revenue =
SUMX(
Sales,
Sales[Quantity] * Sales[UnitPrice]
)
SUMX is commonly used for business calculations.
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.