Power Query interface overview in Power BI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main purpose of the Power Query interface in Power BI?

Power Query interface helps you clean, transform, and prepare your data before using it in reports. It makes data ready and organized.

beginner

Name the three main sections of the Power Query interface.

The three main sections are: 1) Ribbon with commands, 2) Queries pane showing your data queries, 3) Data preview area where you see and edit your data.

beginner

What does the Queries pane show in Power Query?

It shows all the queries you have created or imported. You can select, rename, or delete queries here.

beginner

How does the Data preview area help you in Power Query?

It shows a live preview of your data after each step. You can see changes immediately and check if your data looks right.

beginner

What is the Ribbon in Power Query used for?

The Ribbon contains buttons and commands to transform data, like filtering, sorting, adding columns, or changing data types.

Which section of Power Query shows all your data queries?

A Ribbon

B Formula bar

C Data preview area

D Queries pane

The Queries pane lists all your queries so you can manage them easily.

What can you do in the Data preview area?

A Create new queries

B Write formulas

C See and edit your data after each step

D Change Power BI themes

The Data preview area shows your data and lets you check changes live.

Where do you find commands like filter, sort, and add column in Power Query?

A Ribbon

B Data preview area

C Status bar

D Queries pane

The Ribbon holds all the transformation commands.

What is NOT a function of the Queries pane?

A Rename queries

B Preview data

C Delete queries

D Select queries

Previewing data happens in the Data preview area, not the Queries pane.

Why is Power Query interface important in Power BI?

A To prepare and clean data before analysis

B To design report visuals

C To share reports with others

D To create dashboards

Power Query is used to prepare and clean data before building reports.

Describe the main parts of the Power Query interface and their roles.

Think about where you find commands, where queries are listed, and where you see your data.

Explain why the Data preview area is useful when working with Power Query.

Consider how seeing data immediately helps avoid mistakes.

Practice

1. What is the main purpose of the Applied Steps pane in Power Query interface?

easy

A. To display the final output of the query only

B. To track every change made to the data so you can review or undo them

C. To connect to external data sources

D. To write custom formulas manually

Solution

1. Step 1: Understand the role of Applied Steps pane

   The Applied Steps pane shows each transformation step applied to the data in order.

2. Step 2: Identify its purpose in data editing

   This pane allows users to review or undo any changes made during data shaping.

3. Final Answer:

   To track every change made to the data so you can review or undo them -> Option B

4. Quick Check:

   Applied Steps pane = Tracks changes [OK]

Hint: Applied Steps = history of changes to undo or review [OK]

Common Mistakes:

• Confusing Applied Steps with final output display
• Thinking it connects to data sources
• Assuming it is for writing formulas

2. Which part of the Power Query interface allows you to manage multiple queries easily?

easy

A. Queries pane

B. Applied Steps pane

C. Formula bar

D. Data preview window

Solution

1. Step 1: Identify the pane for managing queries

   The Queries pane lists all queries in the current Power Query session.

2. Step 2: Understand its function

   This pane helps users select, rename, or delete queries easily.

3. Final Answer:

   Queries pane -> Option A

4. Quick Check:

   Queries pane = Manage multiple queries [OK]

Hint: Queries pane lists and manages all queries [OK]

Common Mistakes:

• Confusing Queries pane with Applied Steps pane
• Thinking Formula bar manages queries
• Assuming Data preview window manages queries

3. In Power Query, if you apply a filter step to remove rows with blank values, where will this step appear?

medium

A. In the Applied Steps pane as a new step

B. In the Queries pane as a new query

C. In the Data preview window only

D. In the Ribbon under Home tab

Solution

1. Step 1: Understand where transformation steps are recorded

   Every change like filtering rows is recorded as a step in the Applied Steps pane.

2. Step 2: Identify the correct location for the filter step

   The filter step appears as a new entry in the Applied Steps pane, showing the action taken.

3. Final Answer:

   In the Applied Steps pane as a new step -> Option A

4. Quick Check:

   Filter step = Applied Steps pane entry [OK]

Hint: Filter changes show up in Applied Steps pane [OK]

Common Mistakes:

• Thinking filter creates a new query
• Looking for filter step in Ribbon or Data preview only
• Confusing Queries pane with Applied Steps pane

4. You tried to rename a query in the Queries pane but the name did not change. What is the most likely reason?

medium

A. The Ribbon is disabled

B. The Applied Steps pane is locked

C. You forgot to press Enter or click outside the name box after typing

D. You need to refresh the Data preview window first

Solution

1. Step 1: Understand how renaming works in Queries pane

   After typing a new name, you must press Enter or click outside to confirm the change.

2. Step 2: Identify why the name did not update

   If you do not confirm the edit, the old name remains and the change is lost.

3. Final Answer:

   You forgot to press Enter or click outside the name box after typing -> Option C

4. Quick Check:

   Rename requires confirmation by Enter or click [OK]

Hint: Press Enter after renaming query to save change [OK]

Common Mistakes:

• Assuming Applied Steps pane controls query names
• Thinking Ribbon or Data preview affect renaming
• Not confirming edits after typing

5. You want to combine data from two queries and then filter the combined data. Which sequence of actions in Power Query interface is correct?

hard

A. Rename queries first, then use Data preview window to filter combined data

B. Filter each query separately, then use Queries pane to merge them

C. Use Applied Steps pane to combine queries, then Ribbon to filter data

D. Use the Ribbon's 'Append Queries' to combine, then apply filter step in Applied Steps pane

Solution

1. Step 1: Combine queries using Ribbon's Append Queries

   The Ribbon provides the 'Append Queries' option to combine two queries into one.

2. Step 2: Apply filter step after combining

   After combining, apply the filter step which appears in the Applied Steps pane to shape the data.

3. Final Answer:

   Use the Ribbon's 'Append Queries' to combine, then apply filter step in Applied Steps pane -> Option D

4. Quick Check:

   Combine with Ribbon, filter in Applied Steps [OK]

Hint: Combine first with Ribbon, then filter in Applied Steps [OK]

Common Mistakes:

• Filtering before combining data
• Using Queries pane to merge instead of Ribbon
• Trying to combine in Applied Steps pane