6308. Slowly Changing Dimensions: SCD type-1 correction — Automate the workflow with idempotent retries and observability. — e-commerce — C# ASP.NET + ADO.NET

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

Scenario: A e-commerce application must handle SCD type-1 correction. Automate the workflow with idempotent retries and observability. Explain the invariant, SQL strategy, transaction/locking behavior, failure handling, observability and test plan. Use MySQL 8-oriented syntax where applicable.

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Answer & Explanation

4 Answers

Verified Correct Answer

Option 1: Use a parameterized, transaction-aware MySQL 8 implementation for SCD type-1 cor

Use a parameterized, transaction-aware MySQL 8 implementation for SCD type-1 correction, validate the invariant, and explicitly test concurrency, retries and recovery.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.

Verified

Option 2: Use unparameterized dynamic SQL and rely only on application-side validation for

Use unparameterized dynamic SQL and rely only on application-side validation for SCD type-1 correction.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.

Verified

Option 3: Disable database protections and repair inconsistent rows manually after SCD typ

Disable database protections and repair inconsistent rows manually after SCD type-1 correction runs.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.

Verified

Option 4: Run SCD type-1 correction without defining transaction boundaries, retry behavio

Run SCD type-1 correction without defining transaction boundaries, retry behavior, or production validation.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.