SQL Server – How to Order Table by Two Columns

order-bysql serversql-server-2008

I would like to order this table but I can not find a way to make it work. Can you help me?

I have this table:

I need this:

I have a table where documents are listed, the first field is the id of the document and the second field represents the father, so I must show a list where you can see in an orderly manner that 242 is the first document and 252 and 335 were generated from the 242.

The query:

select * from table_name order by col1 ASC, Col2 ASC

…doesn't work for me. I do this query:

SELECT
    FR1.[report_id],
    FR1.[report_parent] 
FROM [FARA_reports] FR1
WHERE
    FR1.[report_is_delete] <> 1 
    AND FR1.[report_is_tmp] <> 1
ORDER BY
    FR1.[report_id] asc, 
    FR1.[report_parent] desc

and this is my first image.

Best Answer

Another option:

select a, b
from t
order by 
    case when a < b or b is null then a else b end,
    case when a < b or b is null then b else a end ;

Test in dbfiddle.uk.

Related Solutions

Mysql – Want to order on two columns but not the usual way

SELECT *
FROM Mytable
ORDER BY
   userID, Date

I assume Date is really a date/time type and not varchar...

Edit, after clarification:

Untested

SELECT
    M.*
FROM
    ( --one row for each user
    SELECT MIN(Date) AS FirstUserDate, userID
    FROM MyTable
    GROUP BY userID
    ) foo
    JOIN
    MyTable M ON foo.userID = M.userID
ORDER BY
    foo.FirstUserDate, M.userID, M.Date;

T-sql – CASE ORDER BY with multiple columns, and different sort options

Break it out a little more:

ORDER BY CASE WHEN @orderby = 1 THEN CONVERT(NVARCHAR(30) , ccd.CertEndDate) END ASC,
         CASE WHEN @orderby = 2 THEN CONVERT(NVARCHAR(30) , ccd.CertEndDate) END DESC,
         tp.lastname ASC,
         tp.firstname ASC

You only need the sort order to change on the first field, so don't enclose the others in the CASE.

It should be noted that we don't include an ELSE for each CASE, which means any other value will return NULL and be discarded from the ORDER BY.

Best Answer

Related Solutions

Mysql – Want to order on two columns but not the usual way

T-sql – CASE ORDER BY with multiple columns, and different sort options

Related Question