如何选择SQL中具有多个不同值的行？

Question

我有4个表：

** [PERSON]

ID_Person Person_NAME** 
    1 First name 1 Last name 1 
    2 First name 2 Last name 2 
    3 First name 3 Last name 3 
    4 First name 4 Last name 4 
    5 First name 5 Last name 5 
    6 First name 6 Last name 6 

**[mobile_number] 
ID Mobile_Number OPERATOR** 
1 797900010 M 
2 797900011 M 
3 698900010 I 
4 797900012 I 
5 698900011 J 
6 797900013 T 
7 797900011 J 
8 698900012 I 
9 797900014 L 
10 698900013 M 
11 797900015 M 


**[user_mobile] 
ID ID_USER ID_MOBILE** 
1 1 1 
2 1 3 
3 1 11 
4 2 6 
5 2 8 
6 3 5 
7 3 10 
8 4 2 
9 5 4 
10 5 7 
11 6 9 

**[MESSAGE_ID] 
ID_Message ID_MOBILE Message Date** 
1 1 text 1   12/04/2011 
2 1 text 2   07/07/2011 
3 1 text 3   05/11/2011 
4 2 text 4   01/13/2012 
5 2 text 5   17/02/2012 
6 2 text 6   13/12/2012 
7 3 text 7   25/12/2011 
8 4 text 8   11/11/2012 
9 4 text 9   03/03/2012 
10 5 text 10   30/04/2012 
11 5 text 11   28/02/2012 
12 6 text 12   01/06/2011 
13 7 text 13   19/08/2010 
14 8 text 14   22/12/2010 
15 8 text 15   14/05/2010 
16 9 text 16   09/04/2012 
17 10 text 17   11/05/2011 
18 11 text 18   15/01/2012 

我必须选择已在不同年份发来的短信要显示 列的所有用户：个人姓名，手机号码，SMSText ，年

我的解决办法：

Select a.Person_Name, Mobile_Nr, message, year(Date) as Years from PERSON a 
    inner join USER_MOBILE b on a.ID_PERSON=b.ID_USER 
    inner join MOBILE_NUMBER c on b.ID_MOBILE=C.ID 
    inner join MESSAGE_ID d on c.ID=d.ID_Mobile 
    group by Person_Name, Mobile_Nr,message,year(Date) 
    having count(distinct year(date))>1 

但它不会返回任何内容。如果我把它改为“having count(distinct year(date))=1”我得到：

 **Person_Name Mobile_Nr  message Years** 
Firstname 1 Lastname 1 698900010 text7 2011 
Firstname 1 Lastname 1 797900010 text1 2011 
Firstname 1 Lastname 1 797900010 text2 2011 
Firstname 1 Lastname 1 797900010 text3 2011 
Firstname 1 Lastname 1 797900015 text18 2012 
Firstname 2 Lastname 2 698900012 text14 2010 
Firstname 2 Lastname 2 698900012 text15 2010 
Firstname 2 Lastname 2 797900013 text12 2011 
Firstname 3 Lastname 3 698900011 text10 2012 
Firstname 3 Lastname 3 698900011 text11 2012 
Firstname 3 Lastname 3 698900013 text17 2011 
Firstname 4 Lastname 4 797900011 text4 2012 
Firstname 4 Lastname 4 797900011 text5 2012 
Firstname 4 Lastname 4 797900011 text6 2012 
Firstname 5 Lastname 5 698900009 text13 2010 
Firstname 5 Lastname 5 797900012 text8 2012 
Firstname 5 Lastname 5 797900012 text9 2012 
Firstname 6 Lastname 6 797900014 text16 2012 

但这是错误的，我想只显示在不同年份发来的短信用户。

Answer 1

试试这个 - 相同的基础查询，以及一个WHERE子句子查询，它可以筛选出多年没有呼叫的人员。

-- Person, phone number, message, and year, for persons who had messages in multiple years 
Select a.Person_Name, Mobile_Nr, message, year(Date) as Years 
from PERSON a 
inner join USER_MOBILE b on a.ID_PERSON=b.ID_USER 
inner join MOBILE_NUMBER c on b.ID_MOBILE=C.ID 
inner join MESSAGE_ID d on c.ID=d.ID_Mobile 
where a.ID_PERSON in (select a.ID_PERSON 
         from PERSON a 
         inner join USER_MOBILE b on a.ID_PERSON=b.ID_USER 
         inner join MOBILE_NUMBER c on b.ID_MOBILE=C.ID 
         inner join MESSAGE_ID d on c.ID=d.ID_Mobile 
         group by a.ID_PERSON 
         having count(distinct year(d.date)) > 1) 

（我不能检查语法，但概念是声音）

Answer 2

您的解决方案非常接近。问题是你正在聚合year(date)，所以只有一年可以出现在任何给定的行。试试这个：

Select a.Person_Name, Mobile_Nr, message, 
      count(distinct year(Date)) as Years 
    from PERSON a inner join 
     USER_MOBILE b 
     on a.ID_PERSON = b.ID_USER inner join 
     MOBILE_NUMBER c 
     on b.ID_MOBILE = C.ID inner join 
     MESSAGE_ID d 
     on c.ID = d.ID_Mobile 
    group by Person_Name, Mobile_Nr, message 
    having count(distinct year(date)) > 1; 

Answer 3

尝试是这样的：

Select a.Person_Name, Mobile_Nr, message, year(D.Date) as Years from PERSON a 
    inner join USER_MOBILE b on a.ID_PERSON=b.ID_USER 
    inner join MOBILE_NUMBER c on b.ID_MOBILE=C.ID 
    inner join MESSAGE_ID d on c.ID=d.ID_Mobile 
WHERE 

EXISTS(

    SELECT 1 
    FROM 
     PERSON a1 
     INNER JOIN USER_MOBILE b1 on a1.ID_PERSON=b1.ID_USER 
     inner join MOBILE_NUMBER c1 on b1.ID_MOBILE=C1.ID 
     inner join MESSAGE_ID d1 on c1.ID=d1.ID_Mobile 
    WHERE 
     C1.MOBILE_NUMBER = C.MOBILE_NUMBER AND 
     year(D1.Date)<>year(D.DATE) 

) 

我知道它可以简化很多，但我只是想证明这里的概念