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Update B. Runner and Customer Experience.md #7

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21 changes: 4 additions & 17 deletions Case Study #2 - Pizza Runner/B. Runner and Customer Experience.md
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Original file line number Diff line number Diff line change
Expand Up @@ -22,24 +22,11 @@ GROUP BY DATEPART(WEEK, registration_date);
### 2. What was the average time in minutes it took for each runner to arrive at the Pizza Runner HQ to pickup the order?

````sql
WITH time_taken_cte AS
(
SELECT
c.order_id,
c.order_time,
r.pickup_time,
DATEDIFF(MINUTE, c.order_time, r.pickup_time) AS pickup_minutes
FROM #customer_orders AS c
JOIN #runner_orders AS r
ON c.order_id = r.order_id
WHERE r.distance != 0
GROUP BY c.order_id, c.order_time, r.pickup_time
)
select r.runner_id, avg(DATEDIFF(MINUTE,order_time,pickup_time)) as time_taken
from runner_orders r join customer_orders c on r.order_id = c.order_id
where pickup_time is not null
group by r.runner_id

SELECT
AVG(pickup_minutes) AS avg_pickup_minutes
FROM time_taken_cte
WHERE pickup_minutes > 1;
````

**Answer:**
Expand Down