Oh sorry Borislav, I dind't read it well.. thanks again.
>>>Yes, NULL can't be compared. NULL is just "Don't know" If you want to compare NULLs use NVL() function:
>>>

>>>? NVL(oLeft.FieldWithNull,0)  == NVL(oRight.FieldWithNull,0)  && If FieldWithNull is some of the numeric fields
>>>? NVL(oLeft.FieldWithNull,[]) == NVL(oRight.FieldWithNull,[]) && If FieldWithNull is char
>>>? NVL(oLeft.FieldWithNull,{}) == NVL(oRight.FieldWithNull,{}) && If FieldWithNull is date
>>>

>>
>>No I don't want to compare each field seperately, but now I understand why the my comparison results in null. Thanks.
>
>As I said, this of NULLs as VFP (or any other language) way to say to you "I don't know". You can't compare this. The result always will be "I don't know":
>"I don't know" == 1 -> I don't know :-)