Question

我有以下问题：

Select PERSON_NAME, Mobile_Nr, replace(Message, 'text 8' ,'yes') as SMSs 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.Person_Name not in 
    (Select PERSON_NAME 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 CALL_ID d on c.ID=d.ID_Mobile)

返回：

      PERSON_NAME           Mobile_Nr   SMSs
First name 5 Last name 5    797900012   yes
First name 5 Last name 5    797900012   text 9
First name 5 Last name 5    797900016   text 13

如何在查询中将短信中的所有值更改为是？

Answer 1

不确定我是否理解正确。这就是你想要的吗？

Select PERSON_NAME, Mobile_Nr, SMSs = 'Yes' 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.Person_Name not in 
(Select PERSON_NAME 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 CALL_ID d on c.ID=d.ID_Mobile)

Answer 2

这是你想要做的（假设'消息'列在'MESSAGE_ID'表中）？

UPDATE MESSAGE_ID SET Message='Yes'
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.Person_Name not in 
(Select PERSON_NAME 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 CALL_ID d on c.ID=d.ID_Mobile)

如何在SQL中替换不同的出现？

2 个答案: