How can you optimize the performance of a SQL query that reads a large amount of data?

  • Use indexes on columns frequently queried.
  • Avoid joins and subqueries.
  • Increase the page size of the database.
  • Fetch all data at once to minimize network latency.
To optimize the performance of a SQL query reading large data, you should use indexes on columns frequently queried. Indexes improve data retrieval speed. The other options may not necessarily lead to performance improvements and can even degrade performance.
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