Dataset pack

Invoice numbers by store

Invoice numbers typed as text in three stores, some zero-padded and some broken.

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 Highest number, not highest text.

invoices 19 rows × 3 columns

Download invoices.csv (Pro)

Data dictionary

id: Unique row ID.
store: Store name as typed.
invoice_no: Invoice number as text.

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.