compare columns in two tables with same column names

[pxg08680]

Hi Everyone,

                    I have two tables A&B and have a column which is same in both the tables. I would like to compare the two columns and see if there is any difference between them and make a visual for that difference. both the tables are related using the data field.

For example, Column1 in TableA and Column1 in TableB are same and for getting the difference i tried tha dax query Diff= TableA[column1] - TableB[column1] and i have been getting errors and even if it executes I am getting incorrect values.

Can you help me with this...?

The solution is in real urgency....

Thank You 

[v-ljerr-msft]

Hi @pxg08680,

both the tables are related using the data field.

For example, Column1 in TableA and Column1 in TableB are same and for getting the difference i tried tha dax query Diff= TableA[column1] - TableB[column1] and i have been getting errors and even if it executes I am getting incorrect values.

---

What's the relationship between TableA and TableB(One to One, or One to Many, or Many to One)?

If there is a (One to One, Many to One) relationship between TableA and TableB, then you should be able to use the formula below to create a new calculate column in TableA to calculate the difference.

Diff = TableA[column1] - RELATED ( TableB[column1] )

Regards

[pxg08680]

NewMeasure = IF(SUM(CubeData[CommercialBuyIntentVisits]) = SUM(CommercialBuyIntentVisits[MetricValue]), 1, 0)

I have used this dax query to see if there is any difference between two data columns and represeted as 1 or 0.

Now I want to find the acutal difference between the values.

How do i do that..

Thank You

[v-ljerr-msft · Accepted solution]

Hi @pxg08680,

According to your description above, you should be able to use the formula below to create a new measure and show it on the report to get the actual difference. 

Diff =
SUM ( CommercialBuyIntentVisits[MetricValue] )
    - SUM ( CubeData[CommercialBuyIntentVisits] )

Regards

[pxg08680]

Hey Thank You for the help. 

I actually did it in a different way and it worked.

[pxg08680]

Hi , Thank You for the reply.

I have tried this a couple of times and I dont see the data is matching. I was getting different values than the expected ones.

My data is related on many-one relationship. I have related my data on a DATE column. For more info one of my table has 9 columns and other table has 15 columns. Does that matter..

[Phil_Seamark]

HI @pxg08680

Have you tried the following to create a new calculated table?

TableC = UNION(
                EXCEPT(TableA,TableB),
                EXCEPT(TableB,TableA)
                )

[pxg08680]

Thanks for the reply.

I have tried it but the problem is I dont have same number of columns in both the tables as EXCEPT takes only same number of column tables. As you can see the below picture i was trying to compare data. Pink color data is from a differemce source and ornage color is from a different source. 

[Phil_Seamark]

Hi @pxg08680

A slight tweak is to use the SELECTCOLUMNS function to choose which columns you want from each table (and to make sure the column count alignts)

TableC = 
UNION(
         EXCEPT(SELECTCOLUMNS(TableA,"Col",[Column1]) ,SELECTCOLUMNS(TableB,"Col",[Column1]) ),
         EXCEPT(SELECTCOLUMNS(TableB,"Col",[Column1]) ,SELECTCOLUMNS(TableA,"Col",[Column1]) )
          )

[pxg08680]

I did'nt get what this means. 

Thanks

[Phil_Seamark]

Hi there

Please try this.  Does your Model table have a column called [CommercialBuyIntentVisits] which is also the same name that you have one of the tables?

TableC = 
    UNION(
         EXCEPT(
                SELECTCOLUMNS(CommercialBuyIntentVisits,"Col",[MetricValue]) ,
                SELECTCOLUMNS('Model',"Col",[CommercialBuyIntentVisits]) 
                ),
         EXCEPT(
             SELECTCOLUMNS('Model',"Col",[CommercialBuyIntentVisits]) ,
             SELECTCOLUMNS(CommercialBuyIntentVisits,"Col",[MetricValue]) 
             )
       )

[pxg08680]

NewMeasure = IF(SUM(CubeData[CommercialBuyIntentVisits]) = SUM(CommercialBuyIntentVisits[MetricValue]), 1, 0)

I have used this dax query to find if there is any difference between the columns and represented it as 1 or 0, whic say yea or no. How do I get the difference in value like on 4/5/2017 I have a difference of 2. 

Thank You