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DP-300 deep review — September 27, 2026

The complete guide was read and 94 October objectives in 15 groups individually mapped. The accepted April 24 baseline remains separate from the October 27 revision. The credential confirms a 100-minute assessment and ten languages; the official instructor-led course is four days.

Learning changes

The review fills the missing Intelligent Insights objective and adds five worked examples, covering migration completion, watcher target inventory, weighted Query Store averages, compaction measurements and application recovery. There are now ten labs and 36 answered checks, including two new labs and eight additional questions. Enclave/client support, automatic tuning, job identity, backup protection and internal connectivity-test evidence receive explicit platform and feature boundaries.

Ten offline checks verified deadline, target-count, aggregation, density, recovery and public catalog arithmetic. No SQL, Azure resource, migration, restore, authentication or preview feature was executed. All labs remain learner exercises.

SQL Database and MI release channels were reviewed for relevant 2026 changes. Two dated follow-ups cover volatile monitoring, compaction and backup support. Existing blueprint automation retains the future effective date and requeues changes; it does not automatically enable features or validate lab behavior.

Resource and blog decisions

Pluralsight now lists five courses totaling 9h11 plus a 30-minute lab; the path rounds to ten hours. The HA/DR course is dated September 14, 2026. No dedicated planning/deployment course title is displayed, so the listing does not establish complete objective coverage. MeasureUp lists 160 questions and a December 2022 update; current blueprint alignment remains unverified.

Two O'Reilly item pages and Udemy blocked retrieval. Their earlier durations and scope are marked historical. Several channels, catalogs, Whizlabs and the direct practice assessment yielded shells or metadata. Paid lessons, question banks and video transcripts were not reviewed; study-hour ranges remain planning estimates.

  • Dimitri Furman's March 18, 2026 compaction article contributes an experimental-design exercise. The narrative and results were reviewed; the SQL appendix was neither reviewed end to end nor executed. Current documentation constrains its maintenance headline and preview scope.
  • Dimitri Furman's March 20, 2024 watcher introduction contributes a telemetry-path and target-coverage exercise. The main article was reviewed; its roadmap and historical SQL Insights status are not current guidance. Linked demonstrations and comment scripts were not tested.

Research, repair and checks used the same AI context; independent and human review remain pending. The evidence ledger, ADLC_Docs/operations/2026-09-27-dp-300-deep-review.json, preserves previous records, objective mappings, source observations, guide hashes, findings and local validation.