SQL: From A to Z
SQL: From A to Z

Retired

This book is no longer available for sale.

SQL: From A to Z

This book is 100% complete

Completed on 2020-05-17

About the Book

For complete beginners, SQL: From A to Z is full of those terms and concepts that pop up during training, this is for you if you need a refresher or have a junior analyst in your life that needs something to refer back to.

About the Author

Helen Anderson
Helen Anderson

A Data Analyst and Product Manager from Wellington, New Zealand, Helen leads projects that empower users and make businesses more efficient.

In 2019 she was named as one of AWS’s very first Data Heroes, created to represent a “community of developers, IT leaders, and educators with a shared passion for analytics and database technologies.” 

Table of Contents

  • SQL: From A to Z
  • Alias
  • Begin Transaction
  • CTEs (Common Table Expressions)
  • Datamarts
    • Star model
    • Snowflake model
  • ETL (Extract, Transform, Load)
  • Function
  • Group By
    • COUNT all the things
    • COUNT DISTINCT
    • Filtering with GROUP BY
  • Heaped Storage
    • Clustered Indexes
    • Nonclustered Indexes
  • Integrity
    • The Primary Key
    • Constraints
    • Entity Relationship Diagram (ERD)
    • Crows Foot notation
  • Join
    • INNER JOIN
    • LEFT OUTER JOIN
    • CROSS JOIN
  • Killing Locking Queries
  • Logic
  • Massive Parallel Processing (MPP)
    • Distribution Keys
  • Normalisation
  • OLTP v OLAP
    • OLTP - Online Transaction Processing
    • OLAP - Online Analytics Processing
  • Privileges
    • GRANT SELECT
    • GRANT ALL
  • Query Plan
    • EXPLAIN
    • EXPLAIN ANALYZE
  • Recovery
  • System Tables
  • Truncate v Drop
    • TRUNCATE
    • DELETE
  • Union
    • UNION
    • UNION ALL
  • View
  • Window Function
    • Ranking Function
  • Excel uploads
  • Year
  • Zero
  • Appendix: Resources for Beginner Data Analysts
    • Getting started with SQL
    • Data Visualisation
    • Presenting data and speaking
    • Requirements Gathering
    • Blogging about your experience

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