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Course Outline

Greenplum Architecture

  • Parallel processing and symmetric multi-processing.
  • Segment roles and cluster configuration.
  • Scalability and data movement.
  • Greenplum Data Warehouse architecture.

Greenplum Table Structures

  • Distributed versus randomly assigned tables.
  • Heap versus append-only tables.
  • Row versus columnar storage formats.
  • Partitioned and clustered tables.

Data Distribution and Hashing

  • Hashing logic and distribution keys.
  • Skew handling and its performance impact.
  • Hash maps and row placement strategies.

Indexes and Performance Optimization

  • Clustered and non-clustered indexes.
  • B-tree and bitmap index use cases.
  • Index scan and storage behavior.

Physical Database Design

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

Denormalization Techniques

  • 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 and window functions.
  • Temporary tables, subqueries, and derived tables.

EXPLAIN Plans and Query Tuning

  • Reading and interpreting EXPLAIN output.
  • Cost analysis and plan optimization.
  • Join movement and segment-local operations.

Greenplum Utilities and Best Practices

  • ANALYZE and VACUUM commands.
  • Data loading and movement using Nexus.
  • Security, permissions, and performance optimization tips.

Summary and Next Steps

Requirements

  • A solid understanding of relational databases and SQL.
  • Prior experience with data warehousing or analytical systems.
  • Familiarity with Linux command-line operations.

Audience

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

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