php - 统计同一个表的某个状态列出现的频率

Question

我有一张这样的表:

id model status
1  Star  1
2  Star  0
3  Bana  0
4  Ship  1
5  Star  1
6  Ship  1
7  Ship  0
8  Bana  1
9  Bana  1
10 Ship  0
11 Ship  0

我想要这个:

Model On Off
Ship  2  3 
Star  2  1
Bana  2  1

我尝试过这个，但时间太长了，当我表上有 8000 条记录时......

SELECT a.model,
  (SELECT count(b.status) lib
   FROM SpaceShips b
   WHERE a.model=b.model
     AND b.status='1'
   GROUP BY b.model) ON,
  (SELECT count(c.status) blo
   FROM SpaceShips c
   WHERE a.model=c.model
     AND c.status='0'
   GROUP BY c.model) OFF
FROM SpaceShips a
WHERE (a.status='0'
       OR a.status='1')
GROUP BY model
ORDER BY model

Answer 1

您可以通过以下方式执行此操作:

SELECT
  model,
  SUM(status='0') AS Off,
  SUM(status='1') AS On
FROM
  SpaceShips
GROUP BY
  model

-我在您的示例所需输出中看不到任何顺序，因此我跳过了它