sqlserver 时间差转换为天时分秒

DECLARE @starttime DATETIME = '2016-12-01' , @endtime DATETIME = '2016-12-02 14:56:39.927'; DECLARE @datediffss INT = DATEDIFF(ss, @starttime, @endtime); SELECT @starttime , @endtime; SELECT CAST(CAST(@datediffss / (60*60*24) AS INT) AS VARCHAR) + '天' + CAST(CAST(@datediffss % 86400 / 3600 AS INT) AS VARCHAR) + '小时' + CAST(CAST(@datediffss % 3600 / 60 AS INT) AS VARCHAR) + '分' + CAST(CAST(@datediffss % 60 AS INT) AS VARCHAR) + '秒' AS 时间差;