# The Running Man: A SUM OVER Story

DB Quacks SQL Tutorial · level 26 · chapter 5

Marathon runner duck jogs up panting with a fitness tracker. "Training for the Data Marathon! I need to track my daily progress - show each day with my total distance so far, like a growing bank balance. Focus on my personal journey!"

## Task

Show daily distances for the duck with id 1 with a cumulative running total of distance over time using the 'data/daily_distances.csv' file. You will be calculating running totals using window functions.

## Hint

Look for a window function that can sum values from the beginning of the partition up to the current row.

## Expected result

A table showing daily distances for Quackers with cumulative running totals.

## Tables

### `duck_diaries` (10 rows)

| column | type |
| --- | --- |
| diary_id | BIGINT |
| duck_id | BIGINT |
| entry_date | DATE |
| diary_text | VARCHAR |
| mood | VARCHAR |

### `duck_surveys` (5000 rows)

| column | type |
| --- | --- |
| survey_id | BIGINT |
| duck_id | BIGINT |
| age | BIGINT |
| favorite_food | VARCHAR |
| favorite_pond | BIGINT |
| swimming_rating | BIGINT |
| migration_preference | VARCHAR |
| social_behavior | VARCHAR |
| health_status | VARCHAR |
| activity_level | VARCHAR |
| survey_date | DATE |
| survey_location | BIGINT |

### `ducks` (15 rows)

| column | type |
| --- | --- |
| id | BIGINT |
| name | VARCHAR |
| age | BIGINT |
| species | VARCHAR |
| birth_date | DATE |
| arrival_date | DATE |

### `ponds` (3 rows)

| column | type |
| --- | --- |
| pond_id | BIGINT |
| pond_name | VARCHAR |
| location_lat | DOUBLE |
| location_lng | DOUBLE |
| capacity | BIGINT |
| features | VARCHAR[] |
| amenities | VARCHAR[] |

## Files

### `data/daily_distances.csv` (20 rows)

Download: https://dbquacks.com/data/daily_distances.csv

| column | type |
| --- | --- |
| duck_id | BIGINT |
| date | DATE |
| distance | DOUBLE |
| activity_type | VARCHAR |

## Data

The tables live in a DuckDB database: https://dbquacks.com/data/databases/tutorial.duckdb

To query it outside the browser, attach it read-only:

```sql
ATTACH 'https://dbquacks.com/data/databases/tutorial.duckdb' AS db (READ_ONLY);
USE db;
```

Play it in the browser: https://dbquacks.com/tutorial/26

## Reference

https://duckdb.org/docs/stable/sql/functions/window_functions.html#framing