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Anonymous's avatar
Anonymous
Not applicable
4 years ago
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Conditional deduplication based on multiple columns

Hi everyone,   I need to write a very specific deduplication query and I am wondering if you can help me out. We have an ecommerce site and I am getting a daily CSV file that has transactional info...
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  • Anonymous's avatar
    Anonymous
    4 years ago

    Hi Anonymous 

    Try this code.

    Remove Duplicate =
SUMMARIZE (
    FILTER (
        'Table',
        IF (
            VAR _COUNTROW =
                CALCULATE (
                    COUNTROWS ( 'Table' ),
                    FILTER (
                        ALL ( 'Table' ),
                        'Table'[Master Order Number] = EARLIER ( 'Table'[Master Order Number] )
                            && 'Table'[Item ID] = EARLIER ( 'Table'[Item ID] )
                    )
                )
            RETURN
                _COUNTROW > 1,
            'Table'[RANK] <> 1
                || 'Table'[Invoice Date] <> BLANK (),
            'Table'[RANK] = 1
        )
    ),
    'Table'[Order Number],
    'Table'[Master Order Number],
    'Table'[Order Date],
    'Table'[Invoice Date],
    'Table'[Item ID]
)

    Result is as below.

    Best Regards,
    Rico Zhou

     

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Anonymous's avatar
Anonymous
Not applicable
4 years ago

lbendlin thanks for the reply.

 

Table 1: Sample of data before filter showing all the order IDs within Master Order # 10034858.

 

Order NumberMaster Order NumberOrder DateInvoice DateItem ID
10034858100348587/12/2021 CA-ST-EA
10034858100348587/12/2021 CA-BB-CS
10034858100348587/12/2021 CC-USR-04
10034858100348587/12/2021 CC-UPTP-04
20405998100348587/12/2021 FP-20EHH-CS
20405999100348587/12/2021 3M-SGCUP-01
10034858100348587/12/20217/13/2021CC-USR-04
10034858100348587/12/20217/13/2021CC-UPTP-04
10034858100348587/12/20217/13/2021CA-ST-EA
10034858100348587/12/20217/13/2021CA-BB-CS
20405998100348587/12/20217/13/2021FP-20EHH-CS
20405999100348587/12/20217/13/20213M-SGCUP-01

 

Table 2: Data after filter applied; duplicate order IDs within Master Order # 10034858 WHERE Invoice Date = NULL have been removed.

(Remember I want this logic to look within all Master Order #s. I have just filtered down to one Master Order # to simplify the example output.)

 

Order NumberMaster Order NumberOrder DateInvoice DateItem ID
10034858100348587/12/20217/13/2021CC-USR-04
10034858100348587/12/20217/13/2021CC-UPTP-04
10034858100348587/12/20217/13/2021CA-ST-EA
10034858100348587/12/20217/13/2021CA-BB-CS
20405998100348587/12/20217/13/2021FP-20EHH-CS
20405999100348587/12/20217/13/20213M-SGCUP-01

 

Thanks again.

Anonymous's avatar
Anonymous
Not applicable
4 years ago

Hi Anonymous 

Try this rank code.

 

RANK = 
RANKX (
    FILTER (
        'Table',
        'Table'[Order Number] = EARLIER ( 'Table'[Order Number] )
            && 'Table'[Master Order Number] = EARLIER ( 'Table'[Master Order Number] )
            && 'Table'[Item ID] = EARLIER ( 'Table'[Item ID] )
            && 'Table'[Order Date] = EARLIER ( 'Table'[Order Date] )
    ),
    'Table'[Invoice Date],
    ,
    ASC
)

 

This code will create a rank based on each [Order Number],[Master Order Number],[Order Date] and [Item ID] group. 

Then create a new dax table to remove rank =1.

 

Remove Duplicate = 
SUMMARIZE(FILTER('Table','Table'[RANK]<>1),'Table'[Order Number],'Table'[Master Order Number],'Table'[Order Date],'Table'[Invoice Date],'Table'[Item ID])

 

Result is as below.

Or you can calcualte sum directly by add rank<>1 in your table filter. You don't need to create a new table.

Such as:

Measure = CALCULATE(SUM([Sales],Filter('Table',[Rank]<>1))

 

Best Regards,
Rico Zhou

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.