如何计算一次查询的总启用和禁用行？

Question

例如。

id name age status
1  aaa  10  1
2  bbb  20  0
3  ccc  30  1

现在如何从单个查询中计算总状态1和0 Ans将是1 =＆gt; 2和0 =＆gt; 1

Answer 1

要获得一行，这是我认为你要求的，请使用条件SUM s：

SELECT SUM(CASE WHEN status = 1 THEN 1 ELSE 0 END) AS status1,
    SUM(CASE WHEN status = 0 THEN 1 ELSE 0 END) AS status0
FROM Table1

要获得多行，只需GROUP BY状态：

SELECT status, COUNT(1) AS rows
FROM Table1
GROUP BY status

Answer 2

请尝试：

SELECT 
    STATUS, 
    COUNT(*) Total 
FROM 
    YourTable
GROUP BY STATUS

OR

SELECT DISTINCT
    STATUS, 
    COUNT(*) OVER (PARTITION BY STATUS) Total 
FROM 
    YourTable