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SQL Join for Seller Orders
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SQL Join for Seller Orders

EasySQL · PostgreSQL

Problem

Write a SQL query to join two tables and find the total order volume for a specific marketplace seller over the last 30 days.

Use seller ID 101 and interpret the period relative to CURRENT_DATE, including both boundary dates.

Output

  1. Return one row for seller 101 with seller_id, seller_name, and total_order_volume.
  2. Include only orders dated within the last 30 days through today.

Schema

marketplace_sellers
ColumnTypeDescription
seller_idPKINTUnique marketplace seller identifier
seller_nameVARCHAR(150)Marketplace seller display name
orders
ColumnTypeDescription
order_idPKINTUnique order identifier
seller_idINTSeller associated with the order
order_dateDATEDate the order was placed
order_volumeNUMERIC(12,2)Monetary order volume
Tablesmarketplace_sellersorders
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