Join Cardinality Misestimate (“Adjustment-to-Zero Issue”) in Oracle 12.2 – Part 2
Enhanced example of join cardinality misestimate caused by adjustment-to-zero issue Continue Reading
Month: March 2018
Cartesian Join with Hierarchical Query
How to avoid wrong cardinalities in cartesian joins Continue Reading
JOIN CARDINALITY MISESTIMATE in Oracle 12.2
Wrong join cardinality estimate due to adaptive dynamic sampling Continue Reading