What is the impact of indexing on query performance?
Indexing significantly improves query performance by allowing the database to find data faster, reducing search time.
Can you explain how indexing works in databases?
Sure! Indexing creates a data structure that allows for quick lookups, similar to an index in a book.
Are there any downsides to using indexes?
Yes, while indexes speed up read operations, they can slow down write operations due to the overhead of maintaining the index.
How do I decide which columns to index?
Focus on columns that are frequently used in WHERE clauses, JOINs, or as part of ORDER BY statements.
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