SQLServer中查询的数字列前面补0返回指定长度的字符串: 如: 角本如下: /****** Script for SelectTopNRows command from SSMS ******/ SELECT TOP 1000 [ID] ,[SN] ,[Name] FROM [EduDB].[dbo].[TestTab] select Right('0123456',SN) from TestTab; select RIGHT(REPLICATE('0',5)+CAST(SN AS var