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 Duration 21 hours

Course Outline

Greenplum Architecture

  • Parallel processing and symmetric multi-processing concepts.
  • Segment roles and cluster configuration details.
  • Scalability mechanisms and data movement processes.
  • The architecture of the Greenplum Data Warehouse.

Greenplum Table Structures

  • Comparison of distributed versus randomly assigned tables.
  • Differences between heap and append-only tables.
  • Row-based versus columnar storage formats.
  • Designing partitioned and clustered tables.

Data Distribution and Hashing

  • Hashing logic and the role of distribution keys.
  • Managing skew and its impact on performance.
  • Hash maps and strategies for row placement.

Indexes and Performance Optimization

  • Utilizing clustered and non-clustered indexes.
  • Use cases for B-tree and bitmap indexes.
  • Understanding index scans and storage behavior.

Physical Database Design

  • Normalization and logical model design principles.
  • User access strategies and distribution analysis.
  • Data demographics and making informed indexing decisions.

Denormalization Techniques

  • Using derived data, summary tables, and pre-joins.
  • Treating columnar tables as vertical partitioning.
  • Implementing data marts and materialized views.

Advanced SQL and Query Execution

  • Join strategies and data redistribution.
  • Applying OLAP and window functions.
  • Working with temporary tables, subqueries, and derived tables.

EXPLAIN Plans and Query Tuning

  • Reading and interpreting EXPLAIN output effectively.
  • Conducting cost analysis and optimizing plans.
  • Managing join movement and segment-local operations.

Greenplum Utilities and Best Practices

  • Executing ANALYZE and VACUUM operations.
  • Data loading and movement using Nexus.
  • Tips on security, permissions, and performance.

Summary and Next Steps

Requirements

  • Solid foundation in relational databases and SQL.
  • Practical experience with data warehousing or analytical systems.
  • Proficiency with Linux command-line operations.

Target Audience

  • Data architects and engineers.
  • Database administrators and technical leads.
  • BI developers and analytics specialists utilizing Greenplum.

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