TSQL自定义函数ConvertSecondsToTime

MS SQL Server一个自定义函数[dbo].[udf_ConvertSecondToTime]，把秒数转换为时间。

传入的值最大为86399，如果大于这个数值，这将会出现异常：

The conversion of a nvarchar data type to a datetime data type resulted in an out-of-range value. 

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        Insus.NET
-- Create date:   2012-03-24
-- Description:   Convert second to time
-- =============================================
CREATE FUNCTION [dbo].[udf_ConvertSecondToTime] 
(
    @Seconds INTEGER 
)
RETURNS TIME
AS
BEGIN
DECLARE  
    @H AS NVARCHAR(2) = CAST(ROUND(@Seconds / 3600, 0) AS NVARCHAR),
    @M AS NVARCHAR(2) = CAST(ROUND(((@Seconds % 3600) / 60),0) AS NVARCHAR),
    @S AS NVARCHAR(2) =  CAST(ROUND(((@Seconds % 3600) % 60),0) AS NVARCHAR)
RETURN CAST((@H + ':' + @M + ':' + @S) AS TIME) 
END

Example:

SELECT [dbo].[udf_ConvertSecondsToTime](477)
SELECT [dbo].[udf_ConvertSecondsToTime](86399)

Result:

See also:

http://www.cnblogs.com/insus/articles/1937683.html