Data Cleaning Exercises

Dataset pack

App releases

Release records with version parts in separate columns.

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 Versions are numbers, not text.

releases 17 rows × 5 columns

Download releases.csv (Pro)

Data dictionary

id
Unique release ID.
app
App name.
major
Major version.
minor
Minor version.
patch
Patch version.

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.