# Design an event sourcing system for a bank account

Canonical URL: <https://datadriven.io/problems/design-an-event-sourcing-system-for-a-bank-account-create-a-bd771f4c>

Domain: Data Modeling · Difficulty: medium

## Problem

Design an event sourcing system for a bank account. Create an account_events table (the source of truth) and an account_balances materialized view that derives the current state from events.

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