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Top Sellers Revenue SQL
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Top Sellers Revenue SQL

MediumSQL · PostgreSQL

Problem

Write a query to find the top 10% of sellers by revenue over the last 30 days on Fiverr.

Use the provided sellers and orders data. Treat the last 30 days as the period from CURRENT_DATE - INTERVAL '30 days' through CURRENT_DATE, inclusive. Include sellers with no qualifying orders as zero revenue. If a boundary tie affects ordering, use seller_id as the tie-breaker.

Output

  1. One row per seller in the top 10% by revenue.
  2. Columns: seller_id, seller_name, and revenue.
  3. Sort by revenue descending, then seller_id ascending.

Schema

sellers
ColumnTypeDescription
seller_idPKINTUnique Fiverr seller identifier
seller_nameVARCHAR(100)Seller display name
orders
ColumnTypeDescription
order_idPKINTUnique order identifier
seller_idINTSeller who completed the order
order_dateDATEDate the order was completed
order_amountNUMERIC(10,2)Revenue attributed to the seller for the order
Tablessellersorders
Interviewer

Your question is Top Sellers Revenue SQL. Start with the requirements and the two tables in the Question tab.

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CodePostgreSQL
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