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How do I optimize SQL queries?

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Online Mathematics tutor with 4 years experience(Online Classes for 10th to 12th)

Use indexes effectively. Avoid SELECT * and retrieve only necessary columns. Optimize JOIN operations. Minimize the use of subqueries. Avoid redundant or unnecessary data retrieval. Utilize stored procedures. Consider partitioning and sharding. Normalize database tables.
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  1. Use indexes effectively.
  2. Avoid SELECT * and retrieve only necessary columns.
  3. Optimize JOIN operations.
  4. Minimize the use of subqueries.
  5. Avoid redundant or unnecessary data retrieval.
  6. Utilize stored procedures.
  7. Consider partitioning and sharding.
  8. Normalize database tables.
read less
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Use indexing, avoid SELECT *, limit joins, optimize subqueries, and analyze query execution plans.
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My teaching experience 12 years

Use indexing, avoid SELECT *, limit joins, optimize subqueries, and analyze query execution plans.
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