Remove Duplicate values with a condition

[dlr at futurechalk.com]

Hello,

If you have some way to determine in the selected list the duplicates you wanted you could use $filter to get the rows. Otherwise you would have write a loop to get the first row at the control break of the sorted column.

Dan Ridinger

> On Sep 12, 2022, at 10:00 AM, Martin Obongita via omnisdev-en <omnisdev-en at lists.omnis-dev.com> wrote:
> 
> Hi Paul,
> I have played around with this duplicate.
> There is this command: $selectduplicates.
> Using this command will select the second duplicate row.
> Is there a way to set the command to select the first duplicate row?
> Kind regards,Martin O.
> 
>    On Monday, September 12, 2022 at 03:24:37 AM GMT+3, Paul Mulroney <pmulroney at logicaldevelopments.com.au> wrote:  
> 
> Hi Martin,
> 
> I had to do this recently where I wanted to remove any duplicates the combination of two fields - first name and last name.
> 
> This is how I did it (Studio 10.0, but should work anywhere).  Note I had to create a local var vsFullName
> 
> # Remove duplicates - same first name and surname
> Do vlOutput.$sort($ref.LastName,kFalse,$ref.FirstName,kFalse)
> Do vlOutput.$cols.$add(vsFullName)                                              
> Do vlOutput.$sendall($ref.vsFullName.$assign(con($sendallref.FirstName,' ',$sendallref.LastName)))      ## Create special column to remove dups
> Do vlOutput.$cols.vsFullName.$removeduplicates(kTrue,kTrue)
> 
> You might need to do something similar.
> 
> Regards,
> Paul.
> 
> 
>> On 12 Sep 2022, at 4:52 am, Martin Obongita via omnisdev-en <omnisdev-en at lists.omnis-dev.com> wrote:
>> 
>> Hi ALL,
>> I have the method below to remove duplicate rows in a listDo iSQLTableColNameRowList.$sort($ref.lOriginalColName,kFalse)
>> Do iSQLTableColNameRowList.$cols.lOriginalColName.$removeduplicates()
>> The problem is it deletes all duplicate rows.
>> How do I remove duplicate rows in a list with a condition, say, remove all duplicates but check that C7(the column flag in the list) is true?
>> Kind regards
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> 
> 
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> -- 
> Paul W. Mulroney                                            We Don't Do Simple Pty Ltd 
> pmulroney at logicaldevelopments.com.au      Trading as Logical Developments
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> 
> 
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