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Sql Antipatterns Strike Back
The document discusses various SQL antipatterns, focusing on issues in database design and creation such as 'metadata tribbles', 'entity-attribute-value', and 'polymorphic associations'. It outlines common mistakes and provides solutions, including horizontal and vertical partitioning, as well as strategies for handling flexible attributes and hierarchical data. The aim is to improve database performance and integrity while managing complex relationships within data structures.
In this document
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Introduction to SQL Antipatterns categorized into Database Design, Creation, Query, and Application.
Focus on Metadata Tribbles, which separate data into multiple tables leading to performance issues and complexity.
Discussing Entity-Attribute-Value antipatterns that complicate query integrity and present solutions including single and concrete table inheritance.
Exploration of polymorphic associations, illustrating issues with foreign key constraints and presenting solutions for better database design.
Analysis of naive tree structures, focusing on various methods to manage hierarchical data and their associated queries.
Explores common antipatterns in database creation focusing on ENUMs, rounding errors, and how best to handle changing data.
Discusses the significance of indexing in SQL, its misuse, benefits, and solutions for effective management.
Focuses on various application and query antipatterns, emphasizing best practices in SQL queries and application integrations.
Examines the parameter facade antipattern in SQL that leads to invalid syntax and potential SQL injections, along with solutions.
Discusses phantom side effects when external actions are executed within database triggers and functions.
Emphasizes the importance of recognizing and handling errors effectively during SQL operations.
Highlights the necessity of following standard software development practices within database development.
Contrasts good versus bad ORM practices, promoting better coupling between models and database interactions.
Wrap-up of SQL antipatterns presentation highlighting the key concepts and practices presented.
