多个查询同一个表但在不同列中mysql

我试图得到更多的列来总结来自两个不同表的结果

SET @start_res = 20150301;
SET @finish_res= 20150501;
SET @finish_check= 20150801;
SET @start_check= 20150301;
SET @daily_hos= 3;

SELECT* from
   ( SELECT COUNT(DAY_IN) AS arr FROM t_hospital WHERE DAY_IN between  @start_check and @finish_check and RES_DATE between @start_res and @finish_res  and ID_daily_hos =@daily_hos group by DAY_IN  )e,
     (SELECT COUNT(PAT_STATUS) AS ONG1 FROM t_hospital WHERE PAT_STATUS  like '%ong%' and  DAY_IN between @start_check and @finish_check and RES_DATE between @start_res and @finish_res  and ID_daily_hos =@daily_hos group by DAY_IN ) a,
        (SELECT COUNT(PAT_STATUS) AS RTED FROM t_hospital WHERE PAT_STATUS  like '%rtde%'and  DAY_IN between  @start_check and @finish_check and RES_DATE between @start_res and @finish_res  and ID_daily_hos =@daily_hos group by DAY_IN  )b,
           (SELECT COUNT(PAT_STATUS) AS POLI FROM t_hospital WHERE PAT_STATUS  like '%pol%'and DAY_IN between @start_check and @finish_check and RES_DATE between @start_res and @finish_res  and ID_daily_hos =@daily_hos group by DAY_IN   )c,
              (SELECT COUNT(PAT_STATUS) AS para FROM t_hospital WHERE PAT_STATUS  like '%para%' and  DAY_IN between @start_check and @finish_check and RES_DATE between @start_res and @finish_res  and ID_daily_hos =@daily_hos group by DAY_IN  )d

当然，它不起作用，只有第一个显示列（arr）起作用，而其他列显示错误的输出

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我错在哪里

在SQL Server 2005+中，可以使用窗口函数。 但是MySQL不支持它

在子查询中，select语句必须具有join运算符。像这样：

SELECT * FROM (
    (SELECT COUNT(..) ...) AS C1
       INNER JOIN (SELECT COUNT(...) ...) AS C2
            ON <condition>
       INNER JOIN ... )

从中选择*(
（选择计数（..）作为C1）
内部联接（选择计数（…）…）作为C2
在…上
内部连接…）

这是一种非常常见的模式：

SELECT DAY_IN, COUNT(*) AS arr,
        SUM(IF(PAT_STATUS  like '%ong%', 1, 0)) AS ONG1,
        SUM(IF(PAT_STATUS  like '%rtde%', 1, 0)) AS RTED,
        SUM(IF(PAT_STATUS  like '%pol%', 1, 0)) AS POL1,
        SUM(IF(PAT_STATUS  like '%para%', 1, 0)) AS para
FROM t_hospital 
WHERE DAY_IN between @start_check and @finish_check 
    and RES_DATE between @start_res and @finish_res  
    and ID_daily_hos =@daily_hos
GROUP BY DAY_IN

试试这个：-

SET @start_res = 20150301;
SET @finish_res= 20150501;
SET @finish_check= 20150801;
SET @start_check= 20150301;
SET @daily_hos= 3;

SELECT 

(SELECT COUNT(DAY_IN) AS arr FROM t_hospital WHERE 
DAY_IN between  @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res and 
ID_daily_hos =@daily_hos) e,

(SELECT COUNT(PAT_STATUS) AS ONG1 FROM t_hospital WHERE 
PAT_STATUS  like '%ong%' and  
DAY_IN between @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) a,

(SELECT COUNT(PAT_STATUS) AS RTED FROM t_hospital WHERE 
PAT_STATUS  like '%rtde%' and  
DAY_IN between  @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos)b,

(SELECT COUNT(PAT_STATUS) AS POLI FROM t_hospital WHERE 
PAT_STATUS  like '%pol%' and 
DAY_IN between @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) c,

(SELECT COUNT(PAT_STATUS) AS para FROM t_hospital WHERE 
PAT_STATUS  like '%para%' and  
DAY_IN between @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) d

---

您的问题提到加入两个表，但似乎只有

t_hospital

在讨论中。您可能想用另一个表的信息更新您的问题。

如果我理解正确，以下是您想要的

SET @start_res = 20150301;
SET @finish_res= 20150501;
SET @finish_check= 20150801;
SET @start_check= 20150301;
SET @daily_hos= 3;

SELECT 

(SELECT COUNT(DAY_IN) FROM t_hospital WHERE 
DAY_IN between  @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res and 
ID_daily_hos =@daily_hos) AS 'arr' ,

(SELECT COUNT(PAT_STATUS) FROM t_hospital WHERE 
PAT_STATUS  like '%ong%' and  
DAY_IN between @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) AS 'ONG1' ,

(SELECT COUNT(PAT_STATUS) FROM t_hospital WHERE 
PAT_STATUS  like '%rtde%' and  
DAY_IN between  @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) AS 'RTED' ,

(SELECT COUNT(PAT_STATUS) FROM t_hospital WHERE 
PAT_STATUS  like '%pol%' and 
DAY_IN between @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) AS 'POLI' ,

(SELECT COUNT(PAT_STATUS) FROM t_hospital WHERE 
PAT_STATUS  like '%para%' and  
DAY_IN between @start_check and @finish_check and 
RES_DATE between @start_res and @finish_res  and 
ID_daily_hos =@daily_hos) AS 'para'

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可能重复的。。。你需要把这些表连接在一起。你的表e，a，b，c，d没有连接在一起。这让我很高兴。一旦你知道了就容易了。。。谢谢你，伙计！