6729. SQL Security Testing: LIKE escaping — Build success, failure, concurrency and scale tests. — messaging — Go database/sql
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Scenario: A messaging application must handle LIKE escaping. Build success, failure, concurrency and scale tests. 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
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Option 1: Use unparameterized dynamic SQL and rely only on application-side validation for
Use unparameterized dynamic SQL and rely only on application-side validation for LIKE escaping.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
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Option 2: Disable database protections and repair inconsistent rows manually after LIKE es
Disable database protections and repair inconsistent rows manually after LIKE escaping runs.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Option 3: Run LIKE escaping without defining transaction boundaries, retry behavior, or pr
Run LIKE escaping without defining transaction boundaries, retry behavior, or production validation.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Correct Answer
Option 4: Use a parameterized, transaction-aware MySQL 8 implementation for LIKE escaping,
Use a parameterized, transaction-aware MySQL 8 implementation for LIKE escaping, validate the invariant, and explicitly test concurrency, retries and recovery.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.