sqlserver中格式化时间：yyyyMMddHHmmss->yyyy-MM-dd HH:mm:ss

-- bigint 格式化时间 yyyy-MM-dd HH:mm:ss
select FORMAT(20161207160310,‘####-##-## ##:##:##‘) time
-- varchar 格式化时间  yyyy-MM-dd HH:mm:ss
select FORMAT(cast(‘20161207160310‘ as bigint),‘####-##-## ##:##:##‘) time
 
select cast(FORMAT(cast(‘20161207160310‘ as bigint),‘####-##-## ##:##:##‘) as datetime) time
 
select cast(FORMAT(cast(‘20161207160310‘ as bigint),‘####-##-## ##:##:##‘) as datetime2(0)) time

declare @li_duration int = 1000
SELECT  CONVERT(VARCHAR(10),@li_duration/3600)+‘ hours, ‘+CONVERT(VARCHAR(10),@li_duration%3600/60)+‘ minutes, ‘+CONVERT(VARCHAR(10),@li_duration%3600%60)+‘ seconds‘