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 Duration 21 hours

Course Outline

Greenplum Architecture

  • Parallel processing and symmetric multi-processing concepts.
  • Defining segment roles and configuring clusters.
  • Managing scalability and data movement.
  • The architecture of the Greenplum Data Warehouse.

Greenplum Table Structures

  • Distinguishing between distributed and randomly assigned tables.
  • Comparing heap and append-only table types.
  • Selecting row versus columnar storage formats.
  • Utilizing partitioned and clustered tables.

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.

Indexes and Performance Optimization

  • Clustered and non-clustered index types.
  • Application of B-tree and bitmap indexes.
  • Understanding index scans and storage behavior.

Physical Database Design

  • Normalization and logical model design.
  • Strategies for user access and distribution analysis.
  • Data demographics and informed indexing decisions.

Denormalization Techniques

  • Leveraging derived data, summary tables, and pre-joins.
  • Viewing columnar tables as a form of vertical partitioning.
  • Implementing data marts and materialized views.

Advanced SQL and Query Execution

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

EXPLAIN Plans and Query Tuning

  • Reading and interpreting EXPLAIN output.
  • Conducting cost analysis and plan optimization.
  • Optimizing join movement and segment-local operations.

Greenplum Utilities and Best Practices

  • Utilizing ANALYZE and VACUUM commands.
  • Data loading and movement using Nexus.
  • Security, permission management, and performance tips.

Summary and Next Steps

Requirements

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