Hello Stefan,
ah OK. Just to get the complete picture, please be also aware about the impact
on the CBO if you gonna change the code.
https://jonathanlewis.wordpress.com/2018/02/13/coalesce-v-nvl/
Best Regards
Stefan Koehler
Independent Oracle performance consultant and researcher
Website: http://www.soocs.de
Twitter: @OracleSK
Stefan Knecht <knecht.stefan@xxxxxxxxx> hat am 8. Dezember 2019 um 09:20--
geschrieben:
Perhaps to add a bit of detail - here it wasn't just a performance thing. It
literally broke the code, because we have logic in the function that's called
in the second argument of nvl(), and that logic is only valid if the first
argument that came in, was indeed NULL.
Sigh.
