Qunar Tech Salon
Apr 28, 2015 · Databases
SQL Solution for Counting Paid and Unpaid Orders per User‑Product in PostgreSQL
This article explains how to count paid and unpaid orders per user‑product pair in PostgreSQL by aggregating order statuses into arrays, using a sub‑query with GROUP BY and a CASE expression to produce accurate payment success and total order counts.
Order AnalysisPostgreSQLSQL
0 likes · 4 min read