Dataset pack
Contacts with three phone slots
A contact form with three phone fields, often filled with the same number twice.
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 Repeated phone columns to distinct rows.
contacts 12 rows × 4 columns
Download contacts.csv (Pro)Data dictionary
- person_id
- Person ID (unique).
- phone_1
- First phone field.
- phone_2
- Second phone field.
- phone_3
- Third phone field.
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.