It's known that in SQL field = NULL is diferrent from from field IS NULL. Does the same rule applies when you use CASE .. WHEN statement ?
e.g. CASE myField WHEN IS NULL THEN....
From my tests, shows this sintaxt is incorrect so I replaced to CASE myField WHEN NULL THEN ...
this 2nd example worked so far, but I'm worried about that isn't correct way of doing it and may generate some failure returning rows with inconsistent data. So, you guys know if using this way is a valid CASE/WHEN sentence?
I know also there's CASE WHEN myField IS NULL THEN ...
but I'm asking about the 2nd way to make it clear to me.
