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Are values of following columns in dba_hist_sql_plan accurate?

edited Jan 26, 2015 2:09AM in Database Tuning (MOSC) 6 commentsAnswered ✓

Hi all,

We often encounter inaccurate cost or cardinality values for a sql plan when we don't get a sql actually executed,but can we get accurate values for column COST，CARDINALITY，BYTES，CPU_COST，IO_COST from dba_hist_sql_plan since the data is saved after the sql gets actually executed?

thanks

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