如何合併分組和計數字段

Question

我需要Sum的Counted和Grouped columns。順便說一下，我需要Where Clause具體條件。

這是我的複雜查詢;

SELECT COUNT(id) AS Counted, State FROM Table1 
GROUP BY State 
HAVING State NOT IN (2,3) 

UNION ALL 

SELECT SUM(Say) AS SubSUM, State FROM (
    SELECT COUNT(b.id) AS SubCount, b.State FROM Table1 AS b 
    GROUP BY b.State 
    HAVING b.State IN (2,3) 
) S GROUP BY S.State 

我只想知道我有多少行是State 2和3.我希望解釋。

Answer 1

我認爲你可以做你想要的條件聚合。像這樣：

SELECT COUNT(id) AS total, 
     SUM(CASE WHEN State NOT IN (2, 3) THEN 1 ELSE 0 END), 
     SUM(CASE WHEN State IN (2, 3) THEN 1 ELSE 0 END) 
FROM Table1;