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Duration 35 hours
Course Outline
Introduction, Objectives, and Migration Strategy
- Course goals, alignment with participant profiles, and success metrics
- High-level migration approaches and risk considerations
- Setting up workspaces, repositories, and lab datasets
Day 1 — Migration Fundamentals and Architecture
- Lakehouse concepts, Delta Lake overview, and Databricks architecture
- Key differences between SMP and MPP and their implications for migration
- Medallion (Bronze→Silver→Gold) design and an overview of Unity Catalog
Day 1 Lab — Translating a Stored Procedure
- Hands-on migration of a sample stored procedure to a notebook
- Mapping temp tables and cursors to DataFrame transformations
- Validation and comparison against original output
Day 2 — Advanced Delta Lake & Incremental Loading
- ACID transactions, commit logs, versioning, and time travel
- Auto Loader, MERGE INTO patterns, upserts, and schema evolution
- OPTIMIZE, VACUUM, Z-ORDER, partitioning, and storage tuning
Day 2 Lab — Incremental Ingestion & Optimization
- Implementing Auto Loader ingestion and MERGE workflows
- Applying OPTIMIZE, Z-ORDER, and VACUUM; validating results
- Measuring read/write performance improvements
Day 3 — SQL in Databricks, Performance & Debugging
- Analytical SQL features: window functions, higher-order functions, and JSON/array handling
- Reading the Spark UI, DAGs, shuffles, stages, tasks, and diagnosing bottlenecks
- Query tuning patterns: broadcast joins, hints, caching, and spill reduction
Day 3 Lab — SQL Refactoring & Performance Tuning
- Refactor a heavy SQL process into optimised Spark SQL
- Utilise Spark UI traces to identify and fix skew and shuffle issues
- Benchmark before/after and document tuning steps
Day 4 — Tactical PySpark: Replacing Procedural Logic
- Spark execution model: driver, executors, lazy evaluation, and partitioning strategies
- Transforming loops and cursors into vectorised DataFrame operations
- Modularisation, UDFs/pandas UDFs, widgets, and reusable libraries
Day 4 Lab — Refactoring Procedural Scripts
- Refactor a procedural ETL script into modular PySpark notebooks
- Introduce parametrization, unit-style tests, and reusable functions
- Code review and application of best-practice checklists
Day 5 — Orchestration, End-to-End Pipeline & Best Practices
- Databricks Workflows: job design, task dependencies, triggers, and error handling
- Designing incremental Medallion pipelines with quality rules and schema validation
- Integration with Git (GitHub/Azure DevOps), CI, and testing strategies for PySpark logic
Day 5 Lab — Build a Complete End-to-End Pipeline
- Assemble a Bronze→Silver→Gold pipeline orchestrated with Workflows
- Implement logging, auditing, retries, and automated validations
- Run the full pipeline, validate outputs, and prepare deployment notes
Operationalisation, Governance, and Production Readiness
- Unity Catalog governance, lineage, and access control best practices
- Cost, cluster sizing, autoscaling, and job concurrency patterns
- Deployment checklists, rollback strategies, and runbook creation
Final Review, Knowledge Transfer, and Next Steps
- Participant presentations on migration work and lessons learned
- Gap analysis, recommended follow-up activities, and handover of training materials
- References, further learning paths, and support options
Requirements
- A solid understanding of data engineering principles
- Hands-on experience with SQL and stored procedures (Synapse / SQL Server)
- Familiarity with ETL orchestration concepts (ADF or equivalent tools)
Target Audience
- Technology managers possessing a data engineering background
- Data engineers seeking to transition procedural OLAP logic to Lakehouse patterns
- Platform engineers overseeing Databricks adoption
