Exam (elaborations)
Intro to Creating Measures Using DAX questions (updated & already graded A+).
- Course
- Institution
Intro to Creating Measures Using DAX questions (updated & already graded A+).
[Show more]
Content preview
Intro to Creating MeasuresUsing DAX questions 2025-
2026(updated & already
graded A+)
What does DAX stand for and what is it? - answer Data
Analysis Expressions (DAX) is a programming language
that is used throughout Microsoft Power BI for creating
calculated columns, measures, and custom tables. It is a
collection of functions, operators, and constants that can
be used in a formula, or expression, to calculate and
return one or more values.
What is the purpose of calculated columns using DAX? -
answer Calculated columns use Data Analysis Expressions
(DAX) formulas to define a column's values. This tool is
useful for anything from putting together text values from
a couple of different columns to calculating a numeric
value from other values.
How can you create a new column? - answer Create the
new column by selecting the ellipsis (...) button on the
table in the Fields list and then selecting New column. A
new DAX formula appears in the formula bar underneath
the ribbon at the top. You can replace the "Column ="
default text.
Identify the parts of this DAX expression:
, Total Price = 'Sales OrderDetails'[Quantity] * 'Sales
OrderDetails'[Unit Price] - answer The value on the left
side of the equal sign is the column name. The text on the
right side of the equal sign is the DAX expression. This
simple DAX expression takes the quantity value and
multiplies it with the unit price value for each individual
row.
What is the downside of having too many calculated
columns? - answer Having too many calculated columns
will slow performance and will cause you to reach the
maximum Power BI file size sooner.
What are the 3 ways to create a custom column in Power
BI? - answer -Create the column in the source query when
you get the data, for instance, by adding the calculation to
a view in a relational database.
-Create a custom column in Power Query.
-Create a calculated column by using DAX in Power BI
desktop.
Why is using SQL language an efficient way of creating a
column? - answer Because it would make the data source
do the calculations for you. In Power BI, the calculated
column would appear like any other column.
Why is DAX not considered an optimal practice for
creating columns/calculations? - answer The DAX
calculated column does not compress as well as the other
methods. The other column types do get compressed,
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BRAINBOOSTERS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
50064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now