sql - 是否可以将列值设置为字符串和迭代值的串联？

Question

是否可以将 varchar 列的值设置为字符串和结果集迭代的串联。

例如：

update TB_USER set LOGIN_NAME = 'BOB'+index where LOGIN_NAME = 'BOB'

结果如下：

登录名

BOB0

BOB1

BOB2

Answer 1

update T
SET LOGIN_NAME = LOGIN_NAME + CAST(rn AS varchar(10))
FROM
   (SELECT
       LOGIN_NAME,
       ROW_NUMBER() OVER (ORDER BY something /*or (SELECT 1)/*) as rn
    FROM
       TB_USER
    WHERE
       LOGIN_NAME = 'Bob'
    ) T