Payments Received
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You’re given two tables, payments and users. The payments table holds all payments between users with the payment_state column consisting of either "success" or "failed".
How many customers that signed up in January 2020 had a combined (successful) sending and receiving volume greater than $100 in their first 30 days?
Note: The sender_id and recipient_id both represent the user_id.
payments table
| Column | Type |
|---|---|
payment_id |
INTEGER |
sender_id |
INTEGER |
recipient_id |
INTEGER |
created_at |
DATETIME |
payment_state |
VARCHAR |
amount_cents |
INTEGER |
users table
| Column | Type |
|---|---|
id |
INTEGER |
created_at |
DATETIME |
Output:
| Column | Type |
|---|---|
num_customers |
INTEGER |
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