Boolean expression

[fmou]

Hi,

Another noob question,

In trasnformer, I have such derived variable defined,

Code: Select all

IF IsNotNull(the_field) THEN 'Y' ELSE 'N' -- IsFound

Then the variable IsFound is used as an output constrain, e.g,

Code: Select all

if IsFound = 'Y'

Coming from C/C++ background, I'm wondering if I can just use IsNotNull's Return as-is? then in output constrain, just use "IsFound", without further comparison?

thanks