Is there a ChatGPT data analysis alternative that doesn't upload my file?

SQL

SELECT month, SUM(mrr) AS mrr
FROM input
GROUP BY month
ORDER BY month

Rows

SQL

WITH f AS (
  SELECT customer_id, MIN(month) AS first_month
  FROM input
  GROUP BY customer_id
)
SELECT
  CASE
    WHEN first_month < DATE '2025-01-01' THEN 'Customers from before 2025'
    ELSE 'New in 2025'
    END AS segment,
  SUM(mrr) AS mrr,
  COUNT(*) AS customers
FROM input JOIN f USING (customer_id)
WHERE month = DATE '2025-12-01'
GROUP BY segment
ORDER BY segment

Rows

SQL

WITH c AS (
  SELECT
    customer_id,
    SUM(mrr) FILTER (WHERE month = DATE '2024-12-01') AS dec_2024,
    SUM(mrr) FILTER (WHERE month = DATE '2025-12-01') AS dec_2025
  FROM input
  GROUP BY customer_id
)
SELECT
  SUM(dec_2024) AS base_mrr,
  SUM(COALESCE(dec_2025, 0)) FILTER (WHERE dec_2024 > 0) AS same_customers_now,
  SUM(COALESCE(dec_2025, 0)) FILTER (WHERE dec_2024 > 0)
    / SUM(dec_2024) AS nrr
FROM c

Rows