有没有办法在 Cognos Report Studio 中为给定字段创建一组值？
假设一项费用有 5 名与会者。如果我引入字段费用和与会者，这将创建 5 行，因为粒度被强制降低到与会者级别而不是费用级别。
我可以将其强制返回到参加者列是逗号分隔值或某种数组的一行吗？
提炼：
+---------+----------+-----------+------------+
| Expense | Employee | Entry Key | Attendee |
+---------+----------+-----------+------------+
| Meal | Iron Man | 1 | Thor |
+---------+----------+-----------+------------+
| Meal | Iron Man | 1 | Hulk |
+---------+----------+-----------+------------+
| Meal | Iron Man | 1 | Spider Man |
+---------+----------+-----------+------------+
| Meal | Iron Man | 1 | Star Lord |
+---------+----------+-----------+------------+
| Meal | Iron Man | 1 | Thanos |
+---------+----------+-----------+------------+
所需提取物：
+---------+----------+-----------+-------------------------------------------+
| Expense | Employee | Entry Key | Attendee |
+---------+----------+-----------+-------------------------------------------+
| Meal | Iron Man | 1 | Thor, Hulk, Spider Man, Star Lord, Thanos |
+---------+----------+-----------+-------------------------------------------+
仅限于计算字段/方程式假设这将需要一个子查询，然后使用条目键加入到完整查询。不确定这在计算字段中是否可行