sql-servert-sql

Each GROUP BY expression must contain at least one column that is not an outer reference


What am I doing wrong here? I am getting this error on:

SELECT LEFT(SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000), 
            PATINDEX('%[^0-9]%', SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', 
            batchinfo.datapath), 8000))-1),
            qvalues.name,
            qvalues.compound,
            qvalues.rid
FROM batchinfo JOIN qvalues ON batchinfo.rowid=qvalues.rowid
WHERE LEN(datapath)>4
GROUP BY 1,2,3
HAVING rid!=MAX(rid)

I would like to group by the first, second, and third columns having the max rid.

It works fine without the group by and having.


Solution

  • To start with you can't do this:

    having rid!=MAX(rid)
    

    The HAVING clause can only contain things which are attributes of the aggregate groups.

    In addition, 1, 2, 3 is not valid in GROUP BY in SQL Server - I think that's only valid in ORDER BY.

    Can you explain why this isn't what you are looking for:

    select 
    LEFT(SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000), PATINDEX('%[^0-9]%', SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000))-1),
    qvalues.name,
    qvalues.compound,
    MAX(qvalues.rid)
     from batchinfo join qvalues on batchinfo.rowid=qvalues.rowid
    where LEN(datapath)>4
    group by LEFT(SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000), PATINDEX('%[^0-9]%', SUBSTRING(batchinfo.datapath, PATINDEX('%[0-9][0-9][0-9]%', batchinfo.datapath), 8000))-1),
    qvalues.name,
    qvalues.compound