set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go ALTER FUNCTION [dbo].[GET_NUMBER](@S VARCHAR(100)) RETURNS VARCHAR(100) AS BEGIN WHILE PATINDEX('%[^0-9]%',@S) > 0 BEGIN set @s=stuff(@s,patindex('%[^0-9]%',@s),1,'') END RETURN @S END
select dbo.GET_NUMBER('你好111犊子')
结果:111