Question

这是我的2个规范化表格，其中包含Clientid到电话表

(ClientID int Primary key,
FName varchar(25),
LName varchar(25),
HomeAddress varchar(50))

CREATE TABLE Telephone
(TelephoneID tinyint IDENTITY(1,1)Primary key,
TelephoneNo int,
ClientID int foreign key references Client(ClientID))

所以我的Client表的值..

ClientID | FName  | LName |  HomeAddress   
    1      marvin    Biu    p.guevarra st. 
    2      harry    sendon     cali st.

进入我的电话表..

 TelephoneID | TelephoneNo | ClientID  
        1        1234567        1
        2        7654321        1
        3        2222222        2

因为客户端可能有多个电话号码所以我想成为这样的..

ClientID | FName  | LName |  HomeAddress   |   Telephones
    1      marvin    Biu    p.guevarra st.   1234567, 7654321
    2      harry    sendon     cali st.          2222222

我只提出像这样的代码

select distinct lname, CAST(telephoneno AS VARCHAR(10)) + ',' + CAST(telephoneno AS VARCHAR(10)) as Telephones
from telephone
left join client
on client.clientid = telephone.clientid

这样结束了..

 LName |   Telephones
 Biu      1234567, 1234567
 Biu      7654321, 7654321
 sendon     2222222

请有人帮忙，表格最终会以如上所示的简单形式结束，我真的希望1234567 telephoneno加入7654321 telephoneno，在电话列之间使用一个Lname“Biu”列进行昏迷。多数民众赞成1排。：/

Answer 1

SELECT 
  lname,
  Telephones = STUFF((SELECT ','+ CAST(t.telephoneno AS VARCHAR(10)) 
  FROM telephone t
  WHERE t.clientid  = c.clientid 
  For XML PATH('')
  ),1,1,'')
FROM client c

Answer 2

始终在联接中限定您的表格，这样可以更清楚地了解正在发生的事情：

select distinct t.lname, CAST(t.telephoneno AS VARCHAR(10)) + ',' + CAST(c.telephoneno AS VARCHAR(10)) as Telephones
from telephone t
left join client c
on c.clientid = t.clientid

需要解决方案2行进入1行sql server 2008

2 个答案: