topic help explaining expression in QlikView

help explaining expression

didierodayo — Tue, 20 Sep 2016 05:36:04 GMT

Could I please have an explanation of the query below? I am trying to understand what the straight table expression is calculating

Sum({$<TICKET={ '*' } - { '' }>} VAT)

regards

Re: help explaining expression

tresB — Tue, 20 Sep 2016 05:40:27 GMT

Perhaps this intends to sum all VATs considering all TICKETs excluding null. However, Sum({$<TICKET={ '*' } >} VAT) itself should give the same output, because '*' itself doesn't include null. If your TICKET field has some values which are not really null but blank, it might give a different output (which is possibly expected) I presume.