SQL - ROW_NUMBER () OVER (ORDER BY) not working - SQL - ROW_NUMBER () OVER (ORDER BY) not working 小贝子编程网

不管我在ORDER BY子句中放了什么，结果集的顺序都不会改变。

WITH Results AS (
    SELECT DISTINCT 
        MessageThreadUsers.threadFK, 
        MessageThreads.threadDate, 
        Messages.MessageBody, 
        Messages.senderFK,
        Users.userFullName AS senderFullName, 
        ROW_NUMBER() OVER (ORDER BY MessageThreads.threadDate DESC) AS RowNumber
    FROM MessageThreadUsers
        JOIN MessageThreads ON MessageThreadUsers.threadFK = MessageThreads.threadID
        JOIN Messages ON MessageThreads.threadDate = Messages.messageDate
        JOIN Users ON Messages.senderFK = Users.userID
    WHERE userFK = 'usr_developer'
) 
SELECT * FROM Results WHERE RowNumber BETWEEN 1 AND 10

ORDER BY仅在应用于最外层的SELECT语句时控制返回行的顺序。

这可能效果更好：

WITH Results AS (
    SELECT DISTINCT 
        MessageThreadUsers.threadFK, 
        MessageThreads.threadDate, 
        Messages.MessageBody, 
        Messages.senderFK,
        Users.userFullName AS senderFullName, 
        ROW_NUMBER() OVER (ORDER BY MessageThreads.threadDate DESC) AS RowNumber
    FROM MessageThreadUsers
        JOIN MessageThreads ON MessageThreadUsers.threadFK = MessageThreads.threadID
        JOIN Messages ON MessageThreads.threadDate = Messages.messageDate
        JOIN Users ON Messages.senderFK = Users.userID
    WHERE userFK = 'usr_developer'
) 
SELECT * FROM Results WHERE RowNumber BETWEEN 1 AND 10
ORDER BY RowNumber

SQL - ROW_NUMBER () OVER (ORDER BY) not working

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