Data Cleaning Exercises

Dataset pack

Orders and product names

Orders that carry the customer's name, and a product list whose name column means something else.

Fictional data · UTF-8 CSV, every value quoted so padding and leading zeros survive; empty fields are missing values · free for personal and classroom practice · practise it in Joins with clashing column names.

orders 13 rows × 3 columns

Download orders.csv (Pro)

Data dictionary

id
Unique order ID.
name
Customer name.
sku
SKU as typed.

products 4 rows × 2 columns

Download products.csv (Pro)

Data dictionary

sku
SKU (upper case, unique).
name
Product name.

Values are shown in quotes so leading and trailing spaces are visible. ∅ means the cell is missing. Exercises are also graded on hidden datasets that are never published.