Rolling Average Steps
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As a data analyst in a fitness app company, you are tasked with analyzing the user’s daily step count.
Write a SQL query to calculate the 3-day rolling average of steps for each user, rounded to the nearest whole number.
Notes: The rolling average should only be calculated for days where there are 3 previous days of step counts, including the current day. The first 2 days for any user should be excluded.
Example:
Input:
daily_steps table
| Column | Type |
|---|---|
| id | INTEGER |
| user_id | INTEGER |
| steps | INTEGER |
| date | DATE |
Output:
| Column | Type |
|---|---|
| user_id | INTEGER |
| date | DATE |
| avg_steps | FLOAT |
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