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Copy path08_business_insights.sql
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252 lines (178 loc) · 3.43 KB
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USE business_performance;
SELECT
st.store_name,
st.region,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS revenue
FROM sales s
JOIN stores st
ON s.store_id = st.store_id
JOIN products p
ON s.product_id = p.product_id
GROUP BY
st.store_name,
st.region
ORDER BY revenue DESC
LIMIT 1;
SELECT
st.region,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS revenue
FROM sales s
JOIN stores st
ON s.store_id = st.store_id
JOIN products p
ON s.product_id = p.product_id
GROUP BY st.region
ORDER BY revenue DESC
LIMIT 1;
SELECT
p.department,
ROUND(
SUM(
(p.selling_price * s.quantity * (1 - s.discount / 100))
-
(p.cost_price * s.quantity)
),
2
) AS profit
FROM sales s
JOIN products p
ON s.product_id = p.product_id
GROUP BY p.department
ORDER BY profit DESC
LIMIT 1;
SELECT
p.product_name,
SUM(s.quantity) AS units_sold,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS revenue
FROM sales s
JOIN products p
ON s.product_id = p.product_id
GROUP BY
p.product_id,
p.product_name
ORDER BY revenue DESC
LIMIT 1;
SELECT
e.employee_name,
st.store_name,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS revenue
FROM sales s
JOIN employees e
ON s.employee_id = e.employee_id
JOIN stores st
ON e.store_id = st.store_id
JOIN products p
ON s.product_id = p.product_id
GROUP BY
e.employee_id,
e.employee_name,
st.store_name
ORDER BY revenue DESC
LIMIT 1;
SELECT
DATE_FORMAT(s.sale_date, '%Y-%m') AS sales_month,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS revenue
FROM sales s
JOIN products p
ON s.product_id = p.product_id
GROUP BY DATE_FORMAT(s.sale_date, '%Y-%m')
ORDER BY revenue DESC
LIMIT 1;
SELECT
st.store_name,
st.region,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS revenue
FROM sales s
JOIN stores st
ON s.store_id = st.store_id
JOIN products p
ON s.product_id = p.product_id
GROUP BY
st.store_name,
st.region
ORDER BY revenue
LIMIT 1;
SELECT
c.customer_name,
c.membership_type,
ROUND(
SUM(
p.selling_price
* s.quantity
* (1 - s.discount / 100)
),
2
) AS total_spending
FROM sales s
JOIN customers c
ON s.customer_id = c.customer_id
JOIN products p
ON s.product_id = p.product_id
GROUP BY
c.customer_id,
c.customer_name,
c.membership_type
ORDER BY total_spending DESC
LIMIT 1;
USE business_performance;
-- BEST REGION
SELECT
'Best Region' AS insight,
st.region AS result,
ROUND(
SUM(
p.selling_price * s.quantity
* (1 - s.discount / 100)
),
2
) AS value
FROM sales s
JOIN stores st
ON s.store_id = st.store_id
JOIN products p
ON s.product_id = p.product_id
GROUP BY st.region
ORDER BY value DESC
LIMIT 1;