[英]Combining separate queries from the same table as separate columns
我有一个查询,试图与不同的列组合。 具体细节如下:
这就是我正在尝试做的事情:它可以运行,但不能将两列连接在一起。 它们被输出到DBVisualizer中的单独“结果”选项卡中
Select count (distinct CODE) AS Comp_PCT
from cons.GM
Where POLICY='NR'
And PCT is null
UNION
Select count (distinct CODE) AS Comp_DTY
from cons.GM
Where POLICY='NR'
And DTY is null
我不知道这个答案是正确的形式:
SELECT
(Select count (distinct CODE)
from cons.GM
Where POLICY='NR'
And PCT is null) AS Comp_PCT,
(Select count (distinct CODE)
from cons.GM
Where POLICY='NR'
And DTY is null) AS Comp_DTY
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