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 Duration 21 hours

Course Outline

Greenplum Architecture

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

Greenplum Table Structures

  • Distinctions between distributed and randomly assigned tables.
  • Comparison of heap versus append-only tables.
  • Row-based versus columnar storage formats.
  • Partitioned and clustered table designs.

Data Distribution and Hashing

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

Indexing and Performance Optimization

  • Clustered and non-clustered index types.
  • Application scenarios for B-tree and bitmap indexes.
  • Index scanning and storage behavior.

Physical Database Design

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

Denormalization Techniques

  • Utilizing derived data, summary tables, and pre-joins.
  • Columnar tables as a form of vertical partitioning.
  • Data marts and materialized views.

Advanced SQL and Query Execution

  • Join strategies and data redistribution.
  • OLAP concepts and window functions.
  • Temporary tables, subqueries, and derived tables.

EXPLAIN Plans and Query Tuning

  • Interpreting EXPLAIN output effectively.
  • Cost analysis and plan optimization techniques.
  • Join movement and segment-local operations.

Greenplum Utilities and Best Practices

  • Use of ANALYZE and VACUUM commands.
  • Data loading and movement using Nexus.
  • Security protocols, permissions, and performance enhancements.

Summary and Next Steps

Requirements

  • Foundational knowledge of relational databases and SQL.
  • Practical experience with data warehousing or analytical systems.
  • Comfort 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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