Jak odstranit nároky s ClaimStatus =1 na základě data aktivity. SQL Server 2012

SQL DEMO

WITH cte as (
    SELECT ClaimNumber, 
           ClaimStatus,
           ROW_NUMBER() over (PARTITION BY ClaimNumber ORDER BY ActivityDate DESC) as rn
    FROM @TempTable
)
SELECT t.*
FROM @TempTable t
JOIN (SELECT *
      FROM cte
      WHERE rn = 1) f
  ON t.ClaimNumber = f.ClaimNumber
 AND f.ClaimStatus = 0

VÝSTUP

Navíc, pokud máte pouze 2 stavy, můžete to udělat také

WITH cte as (
    SELECT ClaimNumber
    FROM @TempTable
    GROUP BY ClaimNumber
    HAVING MAX(ClaimStatus) = 0
)
SELECT t.*
FROM @TempTable t
WHERE ClaimNumber IN (SELECT * FROM cte)