是否可以將列值設置爲字符串和迭代值的串聯？

Question

是否有可能VARCHAR列的值設置爲一個字符串的串聯和結果集迭代。

例如：

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

結果如下：

LOGIN_NAME

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