从SQL Server中的指定字符串返回子字符串

我有以下疑问：

DECLARE @url varchar (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx' 
SELECT replace(replace(RIGHT(@URL , CHARINDEX ('/' ,REVERSE(@URL))-1),'.aspx',''),'-',' ') as abc

返回以下输出：

实际产出-

预期产出

i、 e我想消除上次出现

-

之后的字符串

要获得预期的输出，我必须进行哪些更改。。 总之，我希望在上次出现

/

之后和上次出现

-

之前有一个子字符串，如上所示

请提前帮助和感谢

类似这样：

DECLARE @url varchar (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx' 

declare @suffix varchar(max)
select @suffix = RIGHT(@URL , CHARINDEX ('/' ,REVERSE(@URL))-1)

select left(@suffix, len(@suffix) - charindex('-', reverse(@suffix)))

输出：

New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach

大概是这样的：

DECLARE @url varchar (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx' 

declare @suffix varchar(max)
select @suffix = RIGHT(@URL , CHARINDEX ('/' ,REVERSE(@URL))-1)

select left(@suffix, len(@suffix) - charindex('-', reverse(@suffix)))

输出：

New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach

试试这个

DECLARE @url VARCHAR (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx'

SELECT Reverse(LEFT(mid, Charindex('/', mid) - 1))
FROM   (SELECT Substring(Reverse(@url), Charindex('-', Reverse(@url)) + 1, Len(@url)) AS mid) a 

试试这个

DECLARE @url VARCHAR (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx'

SELECT Reverse(LEFT(mid, Charindex('/', mid) - 1))
FROM   (SELECT Substring(Reverse(@url), Charindex('-', Reverse(@url)) + 1, Len(@url)) AS mid) a 

另一种选择：

DECLARE @url varchar (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx' 

DECLARE @LastSlash int = LEN(@URL) - CHARINDEX('/', REVERSE(@URL)) + 2,
        @LastMinus int = LEN(@URL) - CHARINDEX ('-', REVERSE(@URL)) + 1

SELECT SUBSTRING(@URL, @LastSlash, @LastMinus-@LastSlash)

另一种选择：

DECLARE @url varchar (max)='http://v.mercola.com/blogs/public_blog/New-Diet-Pill-Expands-1-000-Times-in-Your-Stomach-24728.aspx' 

DECLARE @LastSlash int = LEN(@URL) - CHARINDEX('/', REVERSE(@URL)) + 2,
        @LastMinus int = LEN(@URL) - CHARINDEX ('-', REVERSE(@URL)) + 1

SELECT SUBSTRING(@URL, @LastSlash, @LastMinus-@LastSlash)