sqlserver 每30分自动生成一次

 　　DECLARE @BeginTime AS DATETIME

　　DECLARE @EndTime AS DATETIME

　　DECLARE @Hour AS INT

　　DECLARE @Min AS INT

　　SET @Min = DATEPART(Minute, GETDATE())

　　IF @Min < 30

　　BEGIN

　　SET @BeginTime = CONVERT(VARCHAR(10), GETDATE(), 120) + ' ' + CAST(DATEPART(Hour, GETDATE()) AS VARCHAR) + ':30'

　　SET @EndTime = CONVERT(VARCHAR(10), GETDATE(), 120) + ' ' + CAST(DATEPART(Hour, GETDATE()) AS VARCHAR) + ':00'

　　SET @BeginTime = DATEADD(Hour, -1, @BeginTime)

　　END

　　ELSE

　　BEGIN

　　SET @BeginTime = CONVERT(VARCHAR(10), GETDATE(), 120) + ' ' + CAST(DATEPART(Hour, GETDATE()) AS VARCHAR) + ':00'

　　SET @EndTime = CONVERT(VARCHAR(10), GETDATE(), 120) + ' ' + CAST(DATEPART(Hour, GETDATE()) AS VARCHAR) + ':30'

　　END

　　EXEC up_GenReport @BeginTime, @EndTime