lt (less than), lt_Function: lt
Function 'lt' is not well suited for handling null values. If any or both arguments are null, the function returns a null value. Possible related problems can be circumvented by using the 'lt_' function instead.
Function: lt_
Example: lt_(totalprice, grossprice) is equivalent to or(and(isNull(totalprice), not(isNull(grossprice))), lt(totalprice, grossprice)) | ||||||||