Managing Database State in Pytest: Function vs. Session Scopes
Learn how to balance test speed and isolation in pytest by combining session-scoped database engines with function-scoped transactions to prevent state leakage.
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pythonDiagnosing and Fixing Transaction Conflict (40001) Errors in YugabyteDB
When YugabyteDB returns SQLState 40001 during concurrent updates, it’s a sign of write‑write conflicts under optimistic concurrency control. This guide walks through the recognizable condition, root cause, diagnostic steps, fixes, and escalation criteria to help you resolve and prevent these errors.
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