Oracle Database 21c: New Features for Administrators — Lesson 4: Performance, Automatic Management, Monitoring, Upgrade Testing, and Adoption

Learning Objectives

• Explain the purpose and operating context of optimizer, statistics, SQL analysis, and performance enhancements.
• Apply automatic indexing and autonomous-management concepts and monitoring, diagnostics, alerts, telemetry, and operational changes in a controlled environment.
• Validate outcomes and troubleshoot risks involving workload testing, patching, documentation, adoption roadmap, and support handoff.

Detailed Topics

• optimizer, statistics, SQL analysis, and performance enhancements
• automatic indexing and autonomous-management concepts
• monitoring, diagnostics, alerts, telemetry, and operational changes
• workload testing, patching, documentation, adoption roadmap, and support handoff

Instructor Demonstration

Demonstrate optimizer, statistics, SQL analysis, and performance enhancements for a 19c estate assessed and tested for selective adoption of Oracle Database 21c capabilities; capture the exact configuration, code, command, transaction, query, dashboard, model, schedule, or report evidence that proves the expected result.

Hands-On Exercise

Complete a controlled Oracle Database 21c: New Features for Administrators exercise covering automatic indexing and autonomous-management concepts and monitoring, diagnostics, alerts, telemetry, and operational changes; introduce an exception involving workload testing, patching, documentation, adoption roadmap, and support handoff, diagnose it from evidence, apply the smallest reversible correction, and rerun acceptance checks.

1. Confirm scope, prerequisites, identities, dependencies, data, risks, and expected outcome.
2. Perform the course-specific configuration, development, administration, analysis, or business-process workflow.
3. Capture commands, settings, records, logs, screenshots, reports, metrics, or test results.
4. Compare the observed result with acceptance criteria and document corrective or preventive action.

Scenario Analysis

• Identify the technical or business decision and the stakeholders affected by it.
• Compare security, performance, reliability, compliance, cost, usability, and support trade-offs.
• Define rollback, recovery, communication, evidence, ownership, and escalation requirements.

Troubleshooting Guidance

Diagnose issues involving optimizer, statistics, SQL analysis, and performance enhancements, automatic indexing and autonomous-management concepts, monitoring, diagnostics, alerts, telemetry, and operational changes, workload testing, patching, documentation, adoption roadmap, and support handoff without making an unverified production change. Separate symptoms from causes, gather time-correlated evidence, test a reversible hypothesis, validate the correction, and record recurrence controls.

Validation Checklist

• The requirement, environment, inputs, dependencies, and expected result are documented.
• The result is reproducible and supported by product-specific evidence.
• Normal, boundary, failure, security, performance, and operational conditions are reviewed.
• Exceptions, rollback, ownership, support actions, and the next improvement priority are recorded.

Lesson Outcome

Learners can apply Performance, Automatic Management, Monitoring, Upgrade Testing, and Adoption in a realistic Oracle Database 21c: New Features for Administrators scenario and defend the result with documented evidence.