Answers for "oracle how to understand explain plan"

SQL
1

oracle explain plan

-- Without execution
EXPLAIN PLAN FOR select ...;
SELECT * FROM TABLE(dbms_xplan.display);
-- With execution
SELECT /*+ gather_plan_statistics */  ...;
SELECT * FROM TABLE(dbms_xplan.display_cursor(NULL,NULL,'ALLSTATS LAST'));
Posted by: Guest on April-13-2021

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