Indexing Key Selection
4.1 Impact of Selection
- The preference of indexing key has a profound impact at the system overall performance.
- Frequently used columns in WHERE clauses, JOIN conditions, or ORDER BY clauses should be prioritized for indexing.
4.2 Strategies for Selecting Appropriate Keys
- Column Selectivity: Choose columns with high selectivity, i.e., those with a large range of distinct values.
- Query Pattern Analysis: Analyze query patterns to identify columns often accessed in WHERE clauses or JOIN conditions.
- Composite Indexing: Consider composite indexes for a couple of query situations, making sure that the mixed selectivity is excessive.
Indexing in System Design
System design is a complicated system that involves developing efficient and scalable solutions to satisfy the demands of modern applications. One crucial thing of system design is indexing, a way used to optimize information retrieval operations. In this article, we will delve into the idea of indexing, its significance, numerous types, and best practices for implementing indexing in system layout.
Important Topics For The Indexing in System Design
- 1. What is Indexing?
- 2. Types of Indexing
- 3. Data Structures for Indexing
- 4. Indexing Key Selection
- 5. How indexing affects system performance
- 6. Trade-off Between Storage Space and Query Speed
- 7. Use of Indexing in Query Optimizers
- 8. Index Maintenance
- 9. Clustering and Non-Clustering Indexes
- 10. Multi-Column and Composite Indexes
- 11. Full-Text Indexing
- 12. Challenges and Limitations of Indexing
- 13. Conclusion
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