SQL Performance (MOSC)

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gather stats on tables with stale stats < 10%

edited Jul 12, 2016 4:45PM in SQL Performance (MOSC) 4 commentsAnswered ✓

whenever i have a sql performance issue ..i generally run SQLT xtract and one of areas i see is "Observations".Most of the times SQLT suggests to consider gathering stats on tables using 

    estimate_percent => DBMS_STATS.AUTO_SAMPLE_SIZE,

even though there are no stale statistics on the indexes or tables or the modifications on those tables are less than 5%.

Is it really beneficial by anyways to collect gathering stats in such case?

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