Why Appending queries in Excel? - Purpose & Use Cases

The Big Idea

What if you never had to copy and paste data again to see all your info together?

The Scenario

Imagine you have sales data from January in one sheet and February in another. You want to see all sales together in one place. Manually copying and pasting each month's data into a new sheet feels like a never-ending chore.

The Problem

Copying and pasting data manually is slow and tiring. You might miss some rows or paste data in the wrong order. If new data arrives, you have to repeat the whole process again, risking mistakes and wasting time.

The Solution

Appending queries lets you combine data from multiple tables or sheets automatically. Instead of copying, you just tell Excel to stack the data one after another. When new data comes in, the combined view updates instantly without extra work.

Before vs After

✗ Before

Copy January data
Paste into Master sheet
Copy February data
Paste below January data

✓ After

Use Append Queries to combine January and February tables automatically

What It Enables

It makes combining data from many sources easy, fast, and error-free, so you can focus on analyzing instead of managing data.

Real Life Example

A store manager combines daily sales reports from multiple branches into one report to see total sales without copying data every day.

Key Takeaways

Manual copying is slow and error-prone.

Appending queries automatically stacks data from multiple tables.

It saves time and keeps combined data always up-to-date.

Practice

1. What does appending queries do in Excel Power Query?

easy

A. Filters rows based on conditions

B. Joins tables side-by-side to combine columns

C. Stacks tables vertically to combine rows

D. Sorts data alphabetically

Solution

1. Step 1: Understand appending queries

   Appending means stacking tables one on top of another, combining rows from each table.

2. Step 2: Differentiate from other operations

   Joining combines columns side-by-side, filtering removes rows, sorting arranges data. Only appending stacks rows.

3. Final Answer:

   Stacks tables vertically to combine rows -> Option C

4. Quick Check:

   Appending = stacking rows [OK]

Hint: Appending stacks rows; joining stacks columns [OK]

Common Mistakes:

• Confusing appending with joining tables
• Thinking appending filters or sorts data
• Assuming appending merges columns

2. Which of these is the correct way to append two queries named Sales2023 and Sales2024 in Power Query formula language?

easy

A. Table.Combine({Sales2023, Sales2024})

B. Table.Append(Sales2023, Sales2024)

C. Append.Tables(Sales2023, Sales2024)

D. Combine.Tables(Sales2023, Sales2024)

Solution

1. Step 1: Recall Power Query append syntax

   The correct function to append tables is Table.Combine which takes a list of tables.

2. Step 2: Check each option

   Table.Combine({Sales2023, Sales2024}) uses Table.Combine({Sales2023, Sales2024}) which is correct syntax. Others use incorrect function names or argument formats.

3. Final Answer:

   Table.Combine({Sales2023, Sales2024}) -> Option A

4. Quick Check:

   Use Table.Combine with list of tables [OK]

Hint: Use Table.Combine with curly braces for multiple tables [OK]

Common Mistakes:

• Using Table.Append which is not a valid function
• Missing curly braces around tables list
• Confusing function names like Append.Tables

3. Given two tables in Power Query:
Table1 = Table.FromRecords({[ID=1, Name="Anna"], [ID=2, Name="Ben"]})
Table2 = Table.FromRecords({[ID=3, Name="Cara"], [ID=4, Name="Dan"]})
What is the result of Table.Combine({Table1, Table2})?

medium

A. A table with 2 rows: Anna, Ben

B. An error because tables have different rows

C. A table with 2 rows: Cara, Dan

D. A table with 4 rows: Anna, Ben, Cara, Dan

Solution

1. Step 1: Understand Table.Combine behavior

   Table.Combine stacks rows from both tables into one table.

2. Step 2: Count rows after combining

   Table1 has 2 rows (Anna, Ben), Table2 has 2 rows (Cara, Dan). Combined table has 4 rows total.

3. Final Answer:

   A table with 4 rows: Anna, Ben, Cara, Dan -> Option D

4. Quick Check:

   Appending stacks all rows [OK]

Hint: Appending adds all rows from both tables [OK]

Common Mistakes:

• Thinking only first table rows remain
• Expecting error due to different data
• Confusing append with join

4. You wrote this Power Query formula to append two tables:
Table.Combine(SalesJan, SalesFeb)
But it gives an error. What is the problem?

medium

A. Missing curly braces around tables list

B. Table.Combine cannot append tables

C. Table names must be in quotes

D. Function name should be Append.Tables

Solution

1. Step 1: Check Table.Combine syntax

   Table.Combine expects a list of tables inside curly braces, like {SalesJan, SalesFeb}.

2. Step 2: Identify missing syntax

   The formula lacks curly braces, so it passes two arguments instead of one list, causing error.

3. Final Answer:

   Missing curly braces around tables list -> Option A

4. Quick Check:

   Use curly braces for list input [OK]

Hint: Always wrap tables in curly braces for Table.Combine [OK]

Common Mistakes:

• Omitting curly braces around tables
• Using wrong function names
• Putting table names in quotes

5. You have three monthly sales tables: SalesJan, SalesFeb, and SalesMar. Each has columns Product and Amount. You want a single table with all rows combined. Which Power Query formula correctly appends all three tables?

hard

A. Table.Combine(SalesJan, SalesFeb, SalesMar)

B. Table.Combine({SalesJan, SalesFeb, SalesMar})

C. Table.Append({SalesJan, SalesFeb, SalesMar})

D. Append.Tables(SalesJan, SalesFeb, SalesMar)

Solution

1. Step 1: Recall correct syntax for appending multiple tables

   Table.Combine takes a single argument: a list of tables inside curly braces.

2. Step 2: Evaluate options

   Table.Combine({SalesJan, SalesFeb, SalesMar}) correctly uses Table.Combine({SalesJan, SalesFeb, SalesMar}). Options B, C, and D use wrong syntax or function names.

3. Final Answer:

   Table.Combine({SalesJan, SalesFeb, SalesMar}) -> Option B

4. Quick Check:

   Use Table.Combine with list of tables [OK]

Hint: Use Table.Combine with curly braces for multiple tables [OK]

Common Mistakes:

• Passing tables as separate arguments instead of list
• Using non-existent functions like Table.Append
• Forgetting curly braces