In the t-sql 2012 listed below there is a value that is determined in the Sped_Max column. There are times when the
calculation of SUM(ISNULL(CONVERT(INT, C1023.value), 0)) + SUM(ISNULL(CONVERT(INT, c1024.value), 0))) DESC = 0. Can you tell me why me the value
actually = 0, that nothing is displayed from the query Listed below?
SELECT c1020.PersonID AS Student_PersonID, C1020.Value AS Program_Code, ROW_NUMBER() OVER (PARTITION BY C1020.PersonID
ORDER BY (SUM(ISNULL(CONVERT(INT, C1023.value), 0)) + SUM(ISNULL(CONVERT(INT, c1024.value), 0))) DESC) AS Sped_Max
FROM Test.dbo.cstu C1020
LEFT JOIN
Test.dbo.cstu C1021 ON C1020.personid = C1020.personID AND C1021.attributeID = 1021 AND C1020.date = C1021.date
LEFT JOIN
Test.dbo.cstu C1022 ON C1020.personid = C1022.personID AND C1022.attributeID = 1022 AND C1020.date = C1022.date LEFT JOIN
Test.dbo.cstu C1023 ON C1020.personid = C1023.personID AND C1023.attributeID = 1023 AND C1020.date = C1023.date LEFT JOIN
Test.dbo.cstu C1024 ON C1020.personid = C1024.personID AND C1024.attributeID = 1024 AND C1020.date = C1024.date
where c1020.attributeID = 1020 and C1022.Value IS NULL
GROUP BY C1020.PersonID, C1020.Value