How does the Runstats utility impact query performance in DB2?

  • By collecting statistics on table data distribution, Runstats helps the optimizer make better access path decisions.
  • Runstats allows for the concurrent execution of queries on the same table.
  • Runstats compresses table data, reducing storage space requirements.
  • Runstats ensures data integrity by verifying the consistency of data pages.
Runstats utility is crucial in DB2 for maintaining up-to-date statistics about table data. These statistics help the query optimizer in making informed decisions regarding access paths, which ultimately leads to improved query performance. 
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