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Azure SQL connectivity, managed identity, transient faults, retries, migrations, and production database behavior.
Practice items tagged with Azure SQL Operations.
Uses Query Store and deployment evidence to diagnose and safely mitigate a concrete Azure SQL plan regression.
Diagnose a .NET API that cannot connect to Azure SQL using managed identity.
Decide whether Azure SQL errors are transient platform faults or a real application/query regression.
Explains transient database errors, retry strategy, EF Core execution strategy, idempotency, timeouts, and avoiding retry storms.
Covers using managed identity and Microsoft Entra authentication for Azure SQL access from a .NET API.
Explains safe migration strategy for Azure-hosted .NET APIs, including expand-contract changes, locking risk, rollback, and deployment order.