Scenario: You are optimizing a complex SQL query with multiple subqueries. You notice that the query is running slowly. What should you consider when optimizing this query?
- Denormalization
- Indexing
- Normalization
- Query Caching
Indexing is a technique used to improve the speed of data retrieval operations on a database table at the cost of additional writes and storage space. By adding indexes to the columns involved in the query's WHERE clause or JOIN conditions, you can significantly speed up query execution. Thus, considering indexing is crucial when optimizing a slow-running SQL query.
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