xb.sql and xbi.sql - Explain Oracle Execution Plans Better! (Part 3 - Cardinality Misestimates)

Here&rsquo;s part 3 of my xb.sql & xbi.sql article series that I started writing back in 2019 :-) Part 1 - Show and format execution plans by querying V$SQL_PLAN data directly Part 2 - Show plan line level &ldquo;self-values&rdquo; for A-Time and logical, physical I/Os Part 3 - Show plan line level cardinality misestimate factors (this article) The importance of row-count (cardinality) estimates…