how to merge one column values with same primary key

  • Hello,

    Please help me here with below Query

    SELECT AcctNo,

    PlanCount = COUNT(Model_no),

    PlanName = Case COUNT(Model_no) When 1 then a.Model_no when 0 then NULL else 'Multi Model' end

    FROM dbo.cpDetails D LEFT JOIN TBACTDetails A ON D.AcctNo = A.Social

    WHERE model_NAME IS NULL

    GROUP BY AcctNo --, Case when COUNT(Model_no)= 1 then a.Model_no else 'Multi Model' end

    ORDER BY 2 DESC,1

    i got below error

    ---Column 'TBACTDetails.Model_no' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

    then i placed max(a.model) it is worked, i do get results but the problem

    First Question is is is it correct way of doing or any otherway without use Max() function ?

    Second Question is along with abouve results, if COUNT(model_no) > 1 then (i.e., this model has more than one model name values in model name columns) how can i show both values in one column (seperated by ; )

    for example

    Model_No, Model_Name

    100, Zirrard

    100, Modached

    in the results i would like to get as

    100,2,'Multi Model','Zirrard; ModaChed'

    Please assist me how to get this new column ('Zirrard; ModaChed') where count(*) > 1

    Thanks in advance

    MIlan

  • Could Sombody please assist me

    I Greatful to you

    thank you

  • Something like this should work.

    Notice how I posted ddl and sample data in a consumable format? That is something you should do in the future. It makes it easy for us volunteers to work on your issue. It will also help eliminate the need for you to beg us for help. 😎

    create table #Something

    (

    Model_No int,

    ModelName varchar(25)

    )

    insert #Something

    select 100, 'Zirrard' union all

    select 100, 'Modached'

    select Model_No, COUNT(*), case when COUNT(*) > 1 then 'Multi Model' else 'Single Model' end as ModelType,

    STUFF((select ', ' + ModelName

    from #Something s2

    where s2.Model_No = s.Model_No

    order by s2.ModelName

    for XML PATH('')), 1, 1, ' ')

    from #Something s

    group by Model_No

    drop table #Something

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