Bi-sql order by

ORDER BY sentence

ORDER BY sentence , stay SQL Can usually be used as a sort basis for query results . Of course. PowerBI Of DAX Also in grammar ORDER BY, It's just usually with EVALUATE Statement collocation .

In actual use DAX In the process of function ORDER BY The appearance rate of the function is not particularly high , Only certain functions can be used with this , and , stay BI In demand , Functions that have special sorting requirements for the returned results are RANKX Functions and TOPN Function .

We often use interface operation “ Sort by column ” function . But in SQL In the syntax ,ORDER BY The frequency of using functions can be said to be quite high .

Basic grammar

SELECT  Column name  FROM  The name of the table  ORDER BY  Column name 

Optional parameters

ASC： Ascending sort

DESC： null

Using examples

Case data ：

In the native database of white tea , There is a name “TEST” The database of , There is a name “ Sales details ” Case data for .

Example 1：

Re import the branch column to PowerBI in , Sort in ascending order .

SELECT
      DISTINCT
       The branch where you are 
      FROM
       Sales details 
      ORDER BY
       The branch where you are 
      ASC

give the result as follows ：

Example 2：

Re import the branch column to PowerBI in , Sort in descending order .

SELECT
      DISTINCT
       The branch where you are 
      FROM
       Sales details 
      ORDER BY
       The branch where you are 
      DESC

give the result as follows ：

Example 3：

Import the customer serial number and the branch to PowerBI in , The customer serial number is sorted in ascending order , Descending sort of branch .

SELECT
       Customer serial number ,
       The branch where you are 
      FROM
       Sales details 
      ORDER BY
       Customer serial number 
      ASC,
       The branch where you are 
      DESC

give the result as follows ：

Example 4：

Import the customer serial number and the branch to PowerBI in , Customer serial numbers are sorted in descending order , Sort the stores in ascending order .

SELECT
       Customer serial number ,
       The branch where you are 
      FROM
       Sales details 
      ORDER BY
       Customer serial number 
      DESC,
       The branch where you are 
      ASC

give the result as follows ：

This is white tea , One PowerBI Beginners .