FILTER TABLE BASED ON ANOTHER TABLE

[MarketingGerens]

Hi

I have this 2 tables on my dashboard:

TABLE1CUSTOMERS

CUSTOMERID   |  PRODUCTIDPURCHASE  |  REGISTER_DATE

________________________________________________________________

101                   |   C01                                 |   20/11/2019

102                   |   C02                                 |   20/12/2019

TABLE2PRODUCTS

PRODUCTID |  LAUNCH_DATE

___________________________________

C01               |   19/11/2019

C02               |   22/11/2019

I would like to filter CUSTOMERID's out based on whether DATE1 is earlier than DATE2 to see how many new customers bought a product. I was thinking to do this using the DAX below:

NEW CUSTOMERS =

CALCULATE(

COUNT(TABLE1CUSTOMERS[CUSTOMERID]), FILTER('TABLE1CUSTOMERS','TABLE1CUSTOMERS'[REGISTER_DATE]>'TABLE2PRODUCTS'[LAUNCH_DATE])

)

but this is giving me an error because I can't use the FILTER function by referring to another table. Can somebody help me?

[Anonymous · Accepted solution]

Hello,

As you are trying to access the rows of a table on the one side of the relationship from the many side of the relationship, you need to use RELATED function.

NEW_CUSTOMERS = COUNTX(FILTER(Cust,Cust[REGISTER_DATE]>RELATED(Products[LAUNCH_DATE])),Cust[CUSTOMERID]).

Though using CALCULATE function too we could achieve the same result.

This is yet another way of achieving it, without using calculate.

Regards,

Rakesh

[Anonymous]

@MarketingGerens 

It seems your tables are related by product ID, you need to use RELATED() when referring to THE other table columns. 

NEW CUSTOMERS = CALCULATE(COUNT(Table1[ID]), FILTER('Table1','Table1'[Register Date]>RELATED(Table2[Launch Date])))

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

[amitchandak]

You can have a new column in table1customer, that can help you to solve the problem

minx(FILTER('TABLE2PRODUCTS','TABLE1CUSTOMERS'[REGISTER_DATE]>'TABLE2PRODUCTS'[LAUNCH_DATE] 
&& 'TABLE1CUSTOMERS'[PRODUCTID ]='TABLE2PRODUCTS'[PRODUCTID ]),'TABLE2PRODUCTS'[LAUNCH_DATE])

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