What are the benefits of indexing in SQL?
Indexing in SQL improves query performance by allowing the database to find data faster. It reduces the amount of data scanned.
Can you explain how indexing affects query performance?
Sure! Indexes help the database engine locate rows more efficiently, which speeds up data retrieval and reduces response time.
Are there any downsides to using indexes?
Yes, while indexes speed up read operations, they can slow down write operations like INSERT and UPDATE due to the overhead of maintaining the index.
How do I create an index in SQL?
You can create an index using the CREATE INDEX statement. For example: CREATE INDEX idx_name ON table_name(column_name);
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