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Practical MongoDB Aggregations

You're reading from   Practical MongoDB Aggregations The official guide to developing optimal aggregation pipelines with MongoDB 7.0

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Product type Paperback
Published in Sep 2023
Publisher Packt
ISBN-13 9781835080641
Length 312 pages
Edition 1st Edition
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Tools
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Author (1):
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Paul Done Paul Done
Author Profile Icon Paul Done
Paul Done
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Toc

Table of Contents (20) Chapters Close

Preface 1. Chapter 1: MongoDB Aggregations Explained 2. Part 1: Guiding Tips and Principles FREE CHAPTER
3. Chapter 2: Optimizing Pipelines for Productivity 4. Chapter 3: Optimizing Pipelines for Performance 5. Chapter 4: Harnessing the Power of Expressions 6. Chapter 5: Optimizing Pipelines for Sharded Clusters 7. Part 2: Aggregations by Example
8. Chapter 6: Foundational Examples: Filtering, Grouping, and Unwinding 9. Chapter 7: Joining Data Examples 10. Chapter 8: Fixing and Generating Data Examples 11. Chapter 9: Trend Analysis Examples 12. Chapter 10: Securing Data Examples 13. Chapter 11: Time-Series Examples 14. Chapter 12: Array Manipulation Examples 15. Chapter 13: Full-Text Search Examples 16. Afterword
17. Index 18. Other books you may enjoy Appendix

Fixing and Generating Data Examples

This chapter provides you with tools and techniques to cleanse the data within your dataset. Sometimes, collections may store number and boolean fields as strings, or date fields as text without essential details such as the applicable time zone. Without proper typing, it can be almost impossible for users to execute range-based queries or ask for the results from querying the data to be sorted. You will also learn how to generate new sample data from scratch to help with your testing.

This chapter covers the following:

  • Converting text fields to strongly typed fields
  • Fixing incomplete date strings
  • Generating new mock data
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