最も内側のクエリから 595 行すべてを取得したい場合、331 行の結果を取得しています。264 行 (595-331=264) を除外する理由は、これらの 264 行がステップ #2 のすべての基準を満たしていないためです。基準に合格した 331 行は、OK 列に「>>>」が表示されます。したがって、331 行の最新の日付を表示したいのに加えて、STEP #2 の基準を満たさない他の 264 行の「cid」値と NULL 値を表示したいと考えています。
C# プログラマーとして、これを行う方法はたくさん考えられます。しかし、SQLでこれを行う最良の方法は何ですか?
/* STEP #4: ORDER RESULTS*/ /* SEE LINE 43 FOR ALL EVENTS */
SELECT cid
, edate, OK
, (SELECT CASE WHEN OK = '>>>'
THEN DATEDIFF(day, edate, ChartResp.TxPlanDueDate(t2.cid))
ELSE NULL
END
) AS 'DaysBtwnDueDateAndLDOSPrimClin'
, eser, eatt, erecip, Age, ccm, estaff
FROM (
/* STEP #3: SELECT MOST RECENT EVENT FROM STEP 2 FOR EACH CLIENT*/
SELECT *
FROM (
/* STEP #2: SELECT EVENTS THAT PASS FILTER CRITERIA FOR THOSE CLIENTS*/
SELECT --cid, edate, eser, eatt, erecip, DATEDIFF (Year, cbd, GetDate()) AS 'Age', ccm, estaff,
(SELECT CASE WHEN
(eatt IN (1,2)
AND edate > DATEADD(month, -6, getdate())
AND eser NOT IN (100,115,142)
AND erecip NOT IN ('2','7')
AND (( (erecip = '3') AND (DATEDIFF(Year, cbd, GetDate())<10) ) OR (erecip <> '3') )
AND ccm = estaff)
THEN '>>>'
ELSE ''
END
) AS 'OK'
,cid, edate, eser, eatt, erecip, DATEDIFF(Year, cbd, GetDate()) AS 'Age', ccm, estaff
,rownumber() OVER (PARTITION BY cid ORDER BY edate DESC) rn
FROM events INNER JOIN client ON ecaseno = cid
LEFT OUTER JOIN doc ON doc.docdbid = client.cid
WHERE client.cid IN (
/* STEP #1: SELECT CLIENTS THAT ARE IN ORIGINAL OVERDUE TX PLAN REPORT */ SELECT client.cid
FROM client LEFT OUTER JOIN admission ON client.cid = admission.cid
WHERE ((client.ctype = 'AC') AND (admission.alapdt IS NULL))
GROUP BY client.cid
HAVING ((ChartResp.TxPlanDueDate(client.cid) < DATEADD(day, - 1, GETDATE()))
AND (dbo.FFT(client.cid) IS NULL)
AND (dbo.IsHousingOnly(client.cid) IS NULL)
AND (DATEDIFF(day, ChartResp.TxPlanDueDate(client.cid),DATEADD(day, - 1, GETDATE())) > 0))
/* STEP #1 END */
)
AND eser BETWEEN 11 AND 1000
AND ccm = estaff
AND eatt IN (1,2)
AND edate > DATEADD(month, -6, getdate())
AND eser NOT IN (100,115,142)
AND erecip NOT IN ('2','7')
AND (( (erecip = '3') AND (DATEDIFF(Year, cbd, GetDate())<10) ) OR (erecip <> '3') )
GROUP BY cid, edate, eser, eatt, erecip, cbd, ccm, estaff
/* STEP #2 END */
) t1
WHERE rn = 1-- COMMENT THIS OUT TO SEE ALL EVENTS
/* STEP #3 END */
) t2
ORDER BY cid, edate DESC