需求

实现

isempty = var v_table1 = filter('产品表','产品表'[商品类别]="furniture")
var v_table2 = filter('产品表','产品表'[商品类别]="XXXX")
return isempty(v_table1)
//return isempty(v_tabble1) //检查表是否为空
// return countrows(v_table1) //返回非空行数

无购买行为客户数 = var selectcustomers = calculatetable(distinct('客户表'[客户编号]),allselected())
var customerwithoutsales = filter(selectcustomers,isempty(relatedtable('订单表'))) //筛选出与订单表关联后为空行的客户
var output = countrows(customerswithousales)
return output