SQL - 解析字符串

Question

我有一个包含一个表：

ID  Names 
1  Aaron, Betsy, Cindy 
2  Dillon, Eric, Fred 

我想通过名称列解析并使其返回：

ID Names 
1 Aaraon 
1 Betsy 
1 Cindy 
2 Dillon 

我已经发现了几个功能，网上说解析名称列，但不会将ID绑定回它。

Answer 1

怎么是这样的：

;with cte (id, name, names) as 
(
    select id, 
    cast(left(names, charindex(',',names+',')-1) as varchar(50)) name, 
     stuff(names, 1, charindex(',',names+','), '') names 
    from yourtable 
    union all 
    select id, 
    cast(left(names, charindex(',',names+',')-1) as varchar(50)) name, 
    stuff(names, 1, charindex(',',names+','), '') names 
    from cte 
    where names > '' 
) 
select id, name 
from cte 
order by id 

见SQL Fiddle with Demo

返回结果：

| ID | NAME | 
--------------- 
| 1 | Aaron | 
| 1 | Betsy | 
| 1 | Cindy | 
| 2 | Dillon | 
| 2 | Eric | 
| 2 | Fred |