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Solidity Programming Essentials. - Second Edition

You're reading from  Solidity Programming Essentials. - Second Edition

Product type Book
Published in Jun 2022
Publisher Packt
ISBN-13 9781803231181
Pages 412 pages
Edition 2nd Edition
Languages
Concepts
Author (1):
Ritesh Modi Ritesh Modi
Profile icon Ritesh Modi

Table of Contents (21) Chapters

Preface 1. Part 1: The Fundamentals of Solidity and Ethereum
2. Chapter 1: An Introduction to Blockchain, Ethereum, and Smart Contracts 3. Chapter 2: Installing Ethereum and Solidity 4. Chapter 3: Introducing Solidity 5. Chapter 4: Global Variables and Functions 6. Chapter 5: Expressions and Control Structures 7. Part 2: Writing Robust Smart Contracts
8. Chapter 6: Writing Smart Contracts 9. Chapter 7: Solidity Functions, Modifiers, and Fallbacks 10. Chapter 8: Exceptions, Events, and Logging 11. Chapter 9: Basics of Truffle and Unit Testing 12. Chapter 10: Debugging Contracts 13. Part 3: Advanced Smart Contracts
14. Chapter 11: Assembly Programming 15. Chapter 12: Upgradable Smart Contracts 16. Chapter 13: Writing Secure Contracts 17. Chapter 14: Writing Token Contracts 18. Chapter 15: Solidity Design Patterns 19. Assessments 20. Other Books You May Enjoy

Introducing entity modeling

Entity modeling is not a new concept. It is an age-old practice employed whenever large amounts of data are stored in any system. Entity modeling is used for data stores, such as SQL Server and Oracle. Entity modeling is required for two reasons:

  • Increase the performance of an application while reading and writing data to a data store.
  • Optimize storage to reduce the cost of storage.

Data stores such as SQL Server or Oracle do not have a cost associated with them while reading and writing data. However, Ethereum has a cost of 5,000 gwei for reading and 20,000 gwei for writing data. There is a recurring cost every time data is accessed.

Entity modeling refers to determining the global storage for smart contracts that serve a particular use case.

Ethereum storage

Ethereum provides multiple types of storage:

  • Global storage: This is permanent storage in Ethereum and the data is persisted permanently. This data can be read in...
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