Home > SQL > Which SQL statement is faster? (EXISTS or IN …)

Which SQL statement is faster? (EXISTS or IN …)

Based on Question asked in MSDN Forum

  1.  IN is efficient when most of the filter criteria is in the sub-query.
  2.  EXISTS is efficient when most of the filter criteria is in the main query.
  3.  Usually IN has the slowest performance.

For more you can refer Join vs Exists vs In (SQL)IN vs. JOIN vs. EXISTS

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