Dataset pack
Monthly export files
Three monthly files: one without the optional channel column, one with it, and one with a broken schema.
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 Append monthly files under a declared schema.
jan 6 rows × 2 columns
Download jan.csvData dictionary
- id
- Row ID.
- amount
- Whole-number amount.
| id | amount |
|---|---|
| "iz6d" | "8" |
| "rna5" | "262" |
| "s38t" | "410" |
| "pk5w" | "345" |
| "r8id" | "426" |
| "azjp" | "425" |
feb 4 rows × 3 columns
Download feb.csvData dictionary
- id
- Row ID.
- amount
- Whole-number amount.
- channel
- Sales channel (optional column).
| id | amount | channel |
|---|---|---|
| "irsl" | "91" | "web" |
| "byjg" | "143" | "store" |
| "fate" | "28" | ∅ |
| "ujtb" | "207" | "store" |
bad 3 rows × 2 columns
Download bad.csvData dictionary
- id
- Row ID.
- currency
- Unexpected column; amount is missing.
| id | currency |
|---|---|
| "o8wv" | "EUR" |
| "vmuv" | "EUR" |
| "yt74" | "EUR" |
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.