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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
  • The Greenplum Data Warehouse architectural framework

Greenplum Table Structures

  • Differences between distributed and randomly assigned tables
  • Comparison of heap versus append-only tables
  • Row versus columnar storage format implications
  • Characteristics of partitioned and clustered tables

Data Distribution and Hashing

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

Indexes and Performance Optimization

  • Functionality of clustered and non-clustered indexes
  • Appropriate use cases for B-tree and bitmap indexes
  • Index scan behavior and storage interactions

Physical Database Design

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

Denormalization Techniques

  • Utilizing derived data, summary tables, and pre-joins
  • Employing columnar tables as a form of vertical partitioning
  • Implementation of data marts and materialized views

Advanced SQL and Query Execution

  • Join strategies and data redistribution techniques
  • OLAP concepts and the application of window functions
  • Usage of temporary tables, subqueries, and derived tables

EXPLAIN Plans and Query Tuning

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

Greenplum Utilities and Best Practices

  • Executing ANALYZE and VACUUM commands
  • Data loading and movement processes using Nexus
  • Security considerations, permissions, and performance tips

Summary and Next Steps

Requirements

  • A solid grasp of 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 working with Greenplum

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