Select Inside Case Then
I Need to Select the Project Rate or Shift Rate That Has the Effective Date Less Than Today. Select Case When Isnull(S. Rate,0) = 0 Then Select Top 1 Pr. Rate...
I need to select the project rate or shift rate that has the effective date less than today.
SELECT
CASE
WHEN ISNULL(s.rate,0) = 0
THEN SELECT TOP 1 pr.rate FROM ProjectRates pr WHERE (pr.projectID = p.ID) AND (pr.effectiveDate < GETDATE()) ORDER BY pr.effectiveDate DESC
--p.rate
ELSE SELECT TOP 1 sr.rate FROM ShiftRates sr WHERE (sr.shiftID = s.ID) AND (sr.effectiveDate < GETDATE()) ORDER BY pr.effectiveDate DESC
--s.rate
END AS rate
FROM Projects p
INNER JOIN Shifts s ON (p.ID = s.projectID)
WHERE (p.ID = @projectID)
Please note that this code snippet is part of a larger stored proc and thus it must be within a CASE statement.
1 Answer
Subqueries need parentheses:
SELECT (CASE WHEN ISNULL(s.rate, 0) = 0
THEN (SELECT TOP 1 pr.rate
FROM ProjectRates pr
WHERE (pr.projectID = p.ID) AND (pr.effectiveDate < GETDATE())
ORDER BY pr.effectiveDate DESC
)
ELSE (SELECT TOP 1 sr.rate
FROM ShiftRates sr
WHERE (sr.shiftID = s.ID) AND (sr.effectiveDate < GETDATE())
ORDER BY pr.effectiveDate DESC
) --s.rate
END) AS rate
FROM Projects p INNER JOIN
Shifts s
ON p.ID = s.projectID
WHERE p.ID = @projectID;
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
