獲得在同一個查詢

Question

我有一個工作的查詢，讓我的maxDate的最小和最大日期：

SELECT a.client_id AS client_id 
    , a.patientcount AS patientcount 
    , received_date AS maxRecDate 
FROM 
(
    SELECT DISTINCT CLIENT_ID 
    , PATIENT_ID 
    , count(*) over (partition by client_id, patient_id) AS patientcount 
    from f_accession_daily 
) AS a 
JOIN F_ACCESSION_DAILY AS f ON a.CLIENT_ID = f.CLIENT_ID 
    AND a.PATIENT_ID = f.PATIENT_ID 
GROUP BY f.RECEIVED_DATE, a.CLIENT_ID, a.patientcount 
HAVING f.RECEIVED_DATE = MAX(f.received_date) 

在相同的查詢，我也想回分鐘（f.received_date）。

有沒有辦法做到這一點？也許與子查詢？

Answer 1

我可能失去了一些東西，但我不明白你爲什麼要通過f.RECEIVED_DATE

分組我想查詢可能是：

SELECT a.client_id AS client_id 
    , a.patientcount AS patientcount 
    , max(f.received_date) AS maxRecDate 
    , min(f.received_date) AS minRecDate 
FROM 
(
    SELECT DISTINCT CLIENT_ID 
    , PATIENT_ID 
    , count(*) over (partition by client_id, patient_id) AS patientcount 
    from f_accession_daily 
) AS a 
JOIN F_ACCESSION_DAILY AS f ON a.CLIENT_ID = f.CLIENT_ID 
    AND a.PATIENT_ID = f.PATIENT_ID 
GROUP BY a.CLIENT_ID, a.patientcount 

我沒有測試過這一點，但我認爲它應該工作。

Answer 2

在您的查詢中，添加OR條件以檢查MIN日期。解決以供將來參考問題

SELECT a.client_id AS client_id 
, a.patientcount AS patientcount 
, received_date AS maxRecDate 
FROM 
(
SELECT DISTINCT CLIENT_ID 
, PATIENT_ID 
, count(*) over (partition by client_id, patient_id) AS patientcount 
from f_accession_daily 
) AS a 
JOIN F_ACCESSION_DAILY AS f ON a.CLIENT_ID = f.CLIENT_ID 
AND a.PATIENT_ID = f.PATIENT_ID 
GROUP BY f.RECEIVED_DATE, a.CLIENT_ID, a.patientcount 
HAVING f.RECEIVED_DATE = MAX(f.received_date) 
OR f.RECEIVED_DATE = MIN(f.received_date) -- Newly added condition