How does indexing a database table affect query performance?
- Indexing improves query performance by facilitating faster data retrieval
- Indexing is irrelevant to query performance in a database
- Indexing only affects write operations and doesn't impact query performance
- Indexing slows down query performance due to increased data storage
Indexing a database table improves query performance by facilitating faster data retrieval. It works by creating a data structure that allows the database engine to locate and retrieve specific rows more efficiently, reducing the time required for query execution.
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