Set Analysis 'Includes blank'

[MPS]

Need help with the below expression. I want to include the blanks from the field name 'Active End Date'. This field has Dates and rest as blanks. 

the below expression does select the date with dates, if i remove 'not equals'. 

Sum({<Active__c={'1'},[Property Record Type]={'Office'}
,Active_End_Date-={"*"}>} distinct [Usable Area])

[MPS]

So sorry, the expression did go okay without an error, but the data remains showing the both values (null & dates)

[Chanty4u]

one more try

Add these two lines near the before your data load in the script:

NULLASVALUE;

SET NullValue = 'Blank';  (or SET NullValue = ' ' if applicable)

Sum({<Active__c={'1'},[Property Record Type]={'Office'}
,Active_End_Date={"=len(trim(Active_End_Date))=0"}>} distinct [Usable Area])

[agigliotti]

sorry, my mistake...

=Sum( distinct {< Active__c = {'1'}, [Property Record Type] = {'Office'} >} if( IsNull(Active_End_Date), [Usable Area] ) )

or

=Sum( distinct {< Active__c = {'1'}, [Property Record Type] = {'Office'} >
*
1-< Active_End_Date = {"*"} >} [Usable Area] )

[MPS · Accepted solution]

Thank you all, managed to get the answer. sorry for the late reply.

Sum({<Active__c={'1'},[Property Record Type]={'Office'}
,[Property Location ID]={"=len(Active_End_Date)=0"}>} distinct [Usable Area])

[jlongoria]

Based on what you are trying to do, I recommend creating a flag/identifier at load time to identify null and/or empty values then using the identifier in the set analysis. For example, if you create a flag called IsActiveDateNull where 1 is true and 0 is false, you can use IsActiveDateNull={"1"} in your set analysis.