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我需要創建一個存儲過程,它可以檢查給定的開始和結束年份之間是否存在年份並返回存在的年份。例如,如果我提供2000作爲開始年和2005年結束年,那麼它應該返回表中存在的那些年份。我試過下面的代碼,但它不工作。存儲過程檢查是否全年存在於表
ALTER PROCEDURE [dbo].[CheckExistenceforyear]
@StYear int = 0,
@EdYear int = 0,
@SubStationID int = 0,
@YrString varchar(255) = null Output
AS
BEGIN
SET NOCOUNT ON;
Declare @TempValue varchar(4)
if @StYear <= @EdYear
while @StYear <= @EdYear
Begin
if (select Count(Sub.Year) from table sub where [email protected] and Sub.SubStationID = @SubStationID) > 0
Begin
select @TempValue=Sub.Year from table as sub where [email protected] and Sub.SubStationID = @SubStationID
set @YrString = @YrString + @TempValue
End
set @StYear = @StYear +1
End
Else
return -1
select @YrString
END