List each line once

Scenario

You are a data analyst in the Manufacturing team. DISTINCT removes repeats, so every line appears only one time.

Question

Write your code in the editor, look at the result, then try changing one small thing.

Your task

Write your code in the editor
Press Check my answer
Look at the result on the right

DISTINCT

Read the simple theory: Excel

Advanced · Record Counting & Duplicate Removal — question 1 of 30

Finish all 30 to earn a certificate

1. Choose your dataset

Pick an industry and a size. Your code and results change to match.

IndustrySize

sql editormachine_runs

Snippets

💡 Explain my whole code, line by line (hover any word in the editor for a tip)

🌈 In short — no coding words

📂 Opens the "machine_runs" table→✅ Shows you the answer

Altogether: this query reads your industry table, picks what you need, and shows the answer as rows.

Start typing to see suggestions. Press Enter to use one. Red marks show the line to fix. Drag a bottom corner horizontally and vertically to resize.

Type your code here ↓Tap or click inside the box to start

✍️ Tap here to type

Dataset & schema

machine_runs

IndustryDataset size

The tiny starter data. Bigger data scrolls.

Fields

run_id	line	units
R1	LineA	120
R2	LineB	80
R3	LineA	150
R4	LineC	60

Manufacturing data only.

attempts: 0

▶ Output terminal

$ Press “Check my answer” — results appear here.

Your next steps

Each item turns green when your answer includes it.

1 left

Uses DISTINCT