sql函数实现数据库字符串分割并获取分割后右边的字符串

CREATE FUNCTION [dbo].[svf_GetSplitRightString] (
    @InputString   NVARCHAR(4000) ,    
    @DelimitPosition CHAR(1)
)  
RETURNS NVARCHAR(4000) 
AS
BEGIN 
    DECLARE @RtvString NVARCHAR(4000)
    SET @RtvString = RTRIM(@InputString) 
    WHILE CHARINDEX(@DelimitPosition, @RtvString ) <> 0
    BEGIN
        SET @RtvString = RIGHT(@RtvString, LEN(@RtvString) - CHARINDEX (@DelimitPosition, @RtvString) )
    END
    RETURN @RtvString
END