更改SQL表中的URL

我在一个表中有350万行URL

例如

http://value/value/value/value/value/value/value/value/value/VALUE 我想要

在我实际想要的值之前总是有11个

/

。如何编写脚本来更改所有行？

MS SQL Server 2017架构设置：

CREATE TABLE MyTable (URL varchar(255))
INSERT INTO MyTable (URL) VALUES ('http://value/value/value/value/value/value/value/value/value/MYVALUE'),
                         ('1/2/3/4/5/6/7/8/9/10.pdf'),('1/2/3/4/5/6/7/8/9/13TEST.pdf')

SELECT right(URL, charindex('/', reverse(URL)) - 1) AS MyVal from MyTable

|      MyVal |
|------------|
|    MYVALUE |
|     10.pdf |
| 13TEST.pdf |

查询1：

CREATE TABLE MyTable (URL varchar(255))
INSERT INTO MyTable (URL) VALUES ('http://value/value/value/value/value/value/value/value/value/MYVALUE'),
                         ('1/2/3/4/5/6/7/8/9/10.pdf'),('1/2/3/4/5/6/7/8/9/13TEST.pdf')

SELECT right(URL, charindex('/', reverse(URL)) - 1) AS MyVal from MyTable

|      MyVal |
|------------|
|    MYVALUE |
|     10.pdf |
| 13TEST.pdf |

：

CREATE TABLE MyTable (URL varchar(255))
INSERT INTO MyTable (URL) VALUES ('http://value/value/value/value/value/value/value/value/value/MYVALUE'),
                         ('1/2/3/4/5/6/7/8/9/10.pdf'),('1/2/3/4/5/6/7/8/9/13TEST.pdf')

SELECT right(URL, charindex('/', reverse(URL)) - 1) AS MyVal from MyTable

|      MyVal |
|------------|
|    MYVALUE |
|     10.pdf |
| 13TEST.pdf |

---

你到底想把列值改成什么？我用的是MSSQL。是的，我想更改列值我们知道您想更改列值。好吧，我有以下URL：我希望新值仅为10。pdf“value I want”是URL中的最后一个值吗？可以是类似“../VALUE我想要/VALUE/VALUE/VALUE…”的内容？