Yesterday I described how I come to SQLT Xplore and it helped me to find out, on Oracle 18.104.22.168, that optimizer_features_enable=8.1.3 decreased the parsing time of a query from 5 seconds to 0.2 seconds. Today I show how to use SQLT Xplore.
What is SQLT Xplore?
SQL Xplore automatises the test of almost 2’000 optimizer parameters and bug fixes control against one query, allowing to discover which parameter was eventually the reason of a performance regression.(more…)