多行聚合SQL Server 2008

Question

这是此查询here的扩展。我有一个结果集，目前是正确的，看起来像这样：

MD Name | # PTS | Med Staff | AVG LOS | AVG Bench LOS | AVG DIFF 
MCP  | 4 | Ortho SX | 8.000000| 2.650000  | 5.350000 

我想添加到这个结果，患者总数见过的部门和相同的平均值但对于部门作为一个整体。通过执行以下操作，我可以使每个部门的总患者总结得当，作为另一列添加到上面的原始查询中。

(SELECT 
    COUNT(DISTINCT V.PT_ID) 
    FROM smsdss.pract_dim_v p 
    JOIN smsmir.vst_rpt v 
    on v.adm_pract_no = p.src_pract_no 
    WHERE pv.med_staff_dept = p.med_staff_dept 
    AND v.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
    AND v.vst_type_cd = 'I' 
    AND p.spclty_desc != 'NO DESCRIPTION' 
    --AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' 
    AND v.drg_std_days_stay IS NOT NULL 
    AND p.pract_rpt_name != '?' 
    AND p.orgz_cd = 's0x0' 
    AND p.med_staff_dept IN (
    'INTERNAL MEDICINE', 
    'FAMILY PRACTICE', 
    'SURGERY' 
    ) 
) AS '# PTS For Dept' 

我手动检查了总和，他们是正确的。我知道想要在p.med_staff_dept上添加AVG LOS，AVG BENCH LOS和AVG DIFF。这是我开始获得怪人（技术术语）结果的地方。

这里是我尝试每个部门得到AVG LOS部分：

(SELECT 
    AVG(v.len_of_stay) 
    FROM smsdss.pract_dim_v p 
    JOIN smsmir.vst_rpt v 
    ON v.adm_pract_no = p.src_pract_no 
    WHERE pv.med_staff_dept = p.med_staff_dept 
    AND v.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
    AND v.vst_type_cd = 'I' 
    AND p.spclty_desc != 'NO DESCRIPTION' 
    --AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' 
    AND v.drg_std_days_stay IS NOT NULL 
    AND p.pract_rpt_name != '?' 
    AND p.orgz_cd = 's0x0' 
    AND p.med_staff_dept IN (
    'INTERNAL MEDICINE', 
    'FAMILY PRACTICE', 
    'SURGERY' 
    ) 
) AS 'DEPT ALOS' 

我团伙的得到正确的数字时对Excel的检查，但行中间组是大大不正确，如所以：

# PTS FOR DEPT | DEPT ALOS 
330   | 5.284848 <-- SAME IN EXCEL 
737   | 4.952510 <-- EXCEL SHOWS 196 AND 6.214285 
111   | 3.072072 <-- SAME IN EXCEL 

这是我从查询中总条款：

FROM smsmir.vst_rpt vr 
JOIN smsdss.pract_dim_v pv 
ON vr.adm_pract_no = pv.src_pract_no 

WHERE vr.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
AND vr.vst_type_cd = 'I' 
AND pv.spclty_desc != 'NO DESCRIPTION' 
--AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' 
AND vr.drg_std_days_stay IS NOT NULL 
AND pv.pract_rpt_name != '?' 
AND pv.orgz_cd = 's0x0' 
AND pv.med_staff_dept IN (
'INTERNAL MEDICINE', 
'FAMILY PRACTICE', 
'SURGERY' 
) 
GROUP BY pv.pract_rpt_name, pv.med_staff_dept, pv.spclty_desc 
ORDER BY pv.med_staff_dept, AVG(vr.len_of_stay - vr.drg_std_days_stay)DESC 

所希望的最终输出：

MD NAME | # PTS | MED STAFF | AVG LOS | AVG BENCH | AVG DIFF | DEPT TOT | AVG LOS | AVG BNCH | AVG DIFF 
MCP  | 4 | Ortho SX | 8.000000| 2.650000 | 5.350000 | 300  | 4.990000| 4.500000 | 0.490000 

全码：

DECLARE @STARTDATE DATETIME 
DECLARE @ENDATE DATETIME 

SET @STARTDATE = '2013-05-01' 
SET @ENDATE = '2013-05-31' 

SELECT DISTINCT pv.pract_rpt_name AS 'PHYSICIAN' 
, COUNT(DISTINCT vr.pt_id) AS '# PTS' 
--, pv.spclty_desc AS 'SPECIALTY' 
, pv.med_staff_dept AS 'MED STAFF' 
, AVG(vr.len_of_stay) AS 'AVG LOS' 
, AVG(vr.drg_std_days_stay) AS 'AVG DRG LOS BENCH' 
, AVG(vr.len_of_stay - vr.drg_std_days_stay) AS 'OPPORTUNITY' 
, (SELECT 
    COUNT(DISTINCT V.PT_ID) 
    FROM smsdss.pract_dim_v p 
    JOIN smsmir.vst_rpt v 
    on v.adm_pract_no = p.src_pract_no 
    WHERE pv.med_staff_dept = p.med_staff_dept 
    AND v.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
    AND v.vst_type_cd = 'I' 
    AND p.spclty_desc != 'NO DESCRIPTION' 
    AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' 
    AND v.drg_std_days_stay IS NOT NULL 
    AND p.pract_rpt_name != '?' 
    AND p.orgz_cd = 's0x0' 
    AND p.med_staff_dept IN (
    'INTERNAL MEDICINE', 
    'FAMILY PRACTICE', 
    'SURGERY' 
    ) 
) AS '# PTS For Dept' 
-- currently not working properly 
, (SELECT 
    AVG(V.len_of_stay) 
    FROM smsmir.vst_rpt v 
    JOIN smsdss.pract_dim_v p 
    ON v.adm_pract_no = p.src_pract_no 
    WHERE pv.med_staff_dept = p.med_staff_dept 
    AND v.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
    AND v.vst_type_cd = 'I' 
    AND p.spclty_desc != 'NO DESCRIPTION' 
    AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' 
    AND v.drg_std_days_stay IS NOT NULL 
    AND p.pract_rpt_name != '?' 
    AND p.orgz_cd = 's0x0' 
    AND p.med_staff_dept IN (
    'INTERNAL MEDICINE', 
    'FAMILY PRACTICE', 
    'SURGERY' 
    ) 
) AS 'DEPT ALOS' 

FROM smsmir.vst_rpt vr 
JOIN smsdss.pract_dim_v pv 
ON vr.adm_pract_no = pv.src_pract_no 

WHERE vr.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
AND vr.vst_type_cd = 'I' 
AND pv.spclty_desc != 'NO DESCRIPTION' 
AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' 
AND vr.drg_std_days_stay IS NOT NULL 
AND pv.pract_rpt_name != '?' 
AND pv.orgz_cd = 's0x0' 
AND pv.med_staff_dept IN (
'INTERNAL MEDICINE', 
'FAMILY PRACTICE', 
'SURGERY' 
) 
GROUP BY pv.pract_rpt_name, pv.med_staff_dept, pv.spclty_desc 
ORDER BY pv.med_staff_dept, AVG(vr.len_of_stay - vr.drg_std_days_stay)DESC 

内科号没有被正确地往外冒。

Answer 1

我

发现的问题就在这里：

, (SELECT 
    COUNT(DISTINCT V.PT_ID) 
    FROM smsdss.pract_dim_v p 
    JOIN smsmir.vst_rpt v 
    on v.adm_pract_no = p.src_pract_no 
    WHERE pv.med_staff_dept = p.med_staff_dept 
    AND v.adm_dtime BETWEEN @STARTDATE AND @ENDATE 
    AND v.vst_type_cd = 'I' 
    AND p.spclty_desc != 'NO DESCRIPTION' 
    AND pv.spclty_desc NOT LIKE 'HOSPITALIST%' <-- should be p.spclty not pv. 
    AND v.drg_std_days_stay IS NOT NULL 
    AND p.pract_rpt_name != '?' 
    AND p.orgz_cd = 's0x0' 
    AND p.med_staff_dept IN (
    'INTERNAL MEDICINE', 
    'FAMILY PRACTICE', 
    'SURGERY' 
    ) 
) AS '# PTS For Dept' 

通过在这两个列select语句的问题是固定的改变pv.spclty_desc到p.spclty_desc。但是，这并不能告诉我为什么在声明中只有内科医师失败，而不是其他两位。