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Anonymous
Not applicable

Compare 2 rows

Hi guys,

 

I've two rows that I want to compare:

 

Scenario 1:

 

In this scenario I want:

- According to the two DateTime most recent, If row 1 from Code = row 2 from Code, I get "False", but, if row 1 from code is different from row 2 from code, and QtdDateInv is null I get "True".

 

Scenario 1 - I want to get "False":

 

 

Customer          DateTime          Code          QtdDateInv
C00001          04-02-2017         5245             
C00001          02-01-2017         5245             15-01-2017
C00001          25-11-2016         5240             30-11-2016
C00001 12-05-2016 987798 15-05-2016

 

Scenario 2 - I want to get "True":

 

 

Customer          DateTime          Code          QtdDateInv
C00031          04-02-2017         6200             
C00031          02-01-2017         5245             15-01-2017
C00031          25-11-2016         5240             30-11-2016
C00031 26-01-2016 45455240 31-01-2016

I think that I need to get a mease/calculated column to get the last two Datetime and compare the code. I accept suggestions.

Ty.

 

1 ACCEPTED SOLUTION
v-shex-msft
Community Support
Community Support

Hi @Anonymous,

 

You can try to use below measure if it suitable for your requirement.

 

 

Check = 
var currDate=MAX([DateTime])
var currCustomer=LASTNONBLANK(Test1[Customer],[Customer])
var currCode=LOOKUPVALUE(Test1[Code],Test1[DateTime],currDate,Test1[Customer],currCustomer)
var currQtd=LOOKUPVALUE(Test1[QtdDateInv],Test1[DateTime],currDate,Test1[Customer],currCustomer)
var prevCode=LOOKUPVALUE(Test1[Code],Test1[DateTime],MAXX(FILTER(ALL(Test1),[DateTime]<currDate),[DateTime]),Test1[Customer],currCustomer)
return
if(currCode<>prevCode&&currQtd=BLANK(),TRUE(),FALSE())

 

Logic : use date and customer to find out the specific records, then compare with them.

 

Regards,

Xiaoxin Sheng

Community Support Team _ Xiaoxin
If this post helps, please consider accept as solution to help other members find it more quickly.

View solution in original post

4 REPLIES 4
v-shex-msft
Community Support
Community Support

Hi @Anonymous,

 

You can try to use below measure if it suitable for your requirement.

 

 

Check = 
var currDate=MAX([DateTime])
var currCustomer=LASTNONBLANK(Test1[Customer],[Customer])
var currCode=LOOKUPVALUE(Test1[Code],Test1[DateTime],currDate,Test1[Customer],currCustomer)
var currQtd=LOOKUPVALUE(Test1[QtdDateInv],Test1[DateTime],currDate,Test1[Customer],currCustomer)
var prevCode=LOOKUPVALUE(Test1[Code],Test1[DateTime],MAXX(FILTER(ALL(Test1),[DateTime]<currDate),[DateTime]),Test1[Customer],currCustomer)
return
if(currCode<>prevCode&&currQtd=BLANK(),TRUE(),FALSE())

 

Logic : use date and customer to find out the specific records, then compare with them.

 

Regards,

Xiaoxin Sheng

Community Support Team _ Xiaoxin
If this post helps, please consider accept as solution to help other members find it more quickly.

Hi @Anonymous

 

The concept of 'previous row' is not so easy to manage in Powerpivot. You need some tricks with Filter, earlier, etc.

 

I guess the best approach here is to use Power Query with indexes and self-merge.

You can apply the technique @MattAllington shows in this article.

Anonymous
Not applicable

@Datatouille, I think the best approch is comparing the two most recent "DateTime" according to the "Customer" column. But I'm stucked getting the correct result.

Anonymous
Not applicable

Searching in power bi community I found this from @Vvelarde

 

I adapted to my tables and used "Earlier", but don't work properly. Can anyone help me?

 

 

TableWorkSumm = 
SUMMARIZE (
    G_HistRecolha;
    G_HistRecolha[DataRecolha];
    G_HistRecolha[Cliente];
	G_HistRecolha[Leitura];
    "Resultado"; IF (
        CALCULATE( SUM(G_HistRecolha[Leitura] ))
            -  CALCULATE( SUM(G_HistRecolha[Leitura] ); 'G_HistRecolha'[DataRecolha] > EARLIER ( 'G_HistRecolha'[DataRecolha] ))
            =  CALCULATE( SUM( G_HistRecolha[Leitura] ));
        BLANK();
         CALCULATE( SUM(G_HistRecolha[Leitura] ))
            -  CALCULATE( SUM(G_HistRecolha[Leitura] ) ; 'G_HistRecolha'[DataRecolha] > EARLIER ( 'G_HistRecolha'[DataRecolha] ))
    )
)

 

 

 

and the result expected from the bottom is:

 

3

2

2

1

1

"BLANK"

1

(...)

 

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