PayPal SQL Interview Question | Conditional Aggregation SQL Trick #shorts

Description:
Can you calculate the FINAL account balance for each account using SQL? 👀

In this PayPal-style SQL interview question, we use CASE WHEN + SUM() to solve a real-world banking transactions problem.

Topics covered:
✅ CASE WHEN
✅ SUM()
✅ GROUP BY
✅ Conditional Aggregation
✅ SQL Interview Questions

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