Forum Discussion
youssef1
May 03, 2018Cumulonimbus
Hello Mike.
When you use "table lookup" allow to Looks up a value associated with the specified key. So if the value is not set you will necessarily have a null value.
I regularly use this type of implementation and I do not have a problem...
In my case I use the "eq" to check if the value don't exist...
you still encounter problems? if so can you tell me more
regards