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Books
We introduce a book written by Open Made Consulting as an author.

The Logical Optimization
A transformer rewriting strategy for improved performance.
This book is about rewriting SQL for the purpose of improving performance. It covers the impact of the optimizer directly changing SQL on SQL performance. It presents methods to solve performance problems caused by the limitations of the Logical Optimizer.

Relational Data Modeling Premium Guide
This book balances theory and reality based on practical data modeling experience. It provides strategies that can be applied to actual modeling while being based on relational theory, helping you grow as a data strategist. It emphasizes the importance of theory while helping you develop realistic problem-solving skills through practical modeling.

ORACLE SQL Practical Tuning Basic Solution
This is a basic book for practical Oracle SQL tuning. It covers everything from how to use tuning tools to various tuning techniques and real-world cases, and you can learn by practicing directly using the provided sample data.

Relational Data Modeling Notes
The sequel to the Premium Guide to Relational Data Modeling, Modeling Notes, is out! While the Premium Guide covers the overall modeling concepts, Modeling Notes focuses on core elements such as entities, attributes, and relationships, and is structured to help you understand them quickly and easily. In particular, it helps you think systematically with classification-based explanations, and it also covers in-depth content for experts.
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