Compare Two Tables

[SteveG_91]

I have two tables containing application data, Table1 and Table2.  They are related to each other using the common column, APP_NUM.  Table1 has only one row per APP_NUM while Table2 can have 1 or more rows per APP_NUM.  Each table contains a phone number.  In Table1 the phone number belongs to the originator of the application.  In Table2 the phone numbers belong to each applicant.  What I would like to do is compare the two tables using the APP_NUM and indicate on Table2 if the phone number of any of the applicants is the same phone number as that of the originator on Table1.

Here is the table structure of each table

Table1
APP_NUM	PHONE_NUM
12345	8885551111
77777	3333333333

Table2
APP_NUM	ROLE	PHONE
12345	APPLICANT 1	1111111111
12345	APPLICANT 2	2222222222
77777	APPLICANT 1	8888888888
77777	APPLICANT 2	3333333333

I would like to add a column to Table2 that indicates if there is a match between PHONE and PHONE_NUM using APP_NUM to join the two tables.  So it would look like this

Table2
APP_NUM	ROLE	PHONE	MATCH
12345	APPLICANT 1	1111111111	No
12345	APPLICANT 2	2222222222	No
77777	APPLICANT 1	8888888888	No
77777	APPLICANT 2	3333333333	Yes

Any suggestion on how to accomplish this, either in Power Query or a DAX measure?

Thanks in advance!

[v-xinruzhu-msft · Accepted solution]

Hi @SteveG_91  ,

Try this:

MATCH = CONTAINSSTRING('Table (2)'[PHONE],RELATED('Table'[PHONE_NUM]))

Output:

^{Best Regards,}

^{Yolo Zhu}

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

[SteveG_91]

Compare Two Tables

12m ago

I have two tables containing application data, Table1 and Table2.  They are related to each other using the common column, APP_NUM.  Table1 has only one row per APP_NUM while Table2 can have 1 or more rows per APP_NUM.  Each table contains a phone number.  In Table1 the phone number belongs to the originator of the application.  In Table2 the phone numbers belong to each applicant.  What I would like to do is compare the two tables using the APP_NUM and indicate on Table2 if the phone number of any of the applicants is the same phone number as that of the originator on Table1.

Here is the table structure of each table

Table1
APP_NUM	PHONE_NUM
12345	8885551111
77777	3333333333

Table2
APP_NUM	ROLE	PHONE
12345	APPLICANT 1	1111111111
12345	APPLICANT 2	2222222222
77777	APPLICANT 1	8888888888
77777	APPLICANT 2	3333333333

I would like to add a column to Table2 that indicates if there is a match between PHONE and PHONE_NUM using APP_NUM to join the two tables.  So it would look like this

Table2
APP_NUM	ROLE	PHONE	MATCH
12345	APPLICANT 1	1111111111	No
12345	APPLICANT 2	2222222222	No
77777	APPLICANT 1	8888888888	No
77777	APPLICANT 2	3333333333	Yes

Any suggestion on how to accomplish this, either in Power Query or a DAX measure?

Thanks in advance!

[Bifinity_75]

Hi @SteveG_91 , create this relationship:

And create this calculate column:

Match = if(RELATED(Table1[APP_NUM])=BLANK(),"No","Yes")

The result:

Best Regards

[SteveG_91]

So I already have a one to many relationship between these two tables on the APP_NUM and the PHONE and PHONE_NUM would be a many to many since the phone number can appear multiple times on each table.  When I look to see if the phone number is on both tables it has to be specific to the same APP_NUM.  In other words, for APP_NUM 12345 on Table1 I only want to compare the phone numbers to APP_NUM 12345 on Table2.  Then compare the phone numbers for APP_NUM 77777, etc.

[v-xinruzhu-msft · Accepted solution]

Hi @SteveG_91  ,

Try this:

MATCH = CONTAINSSTRING('Table (2)'[PHONE],RELATED('Table'[PHONE_NUM]))

Output:

^{Best Regards,}

^{Yolo Zhu}

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

[SteveG_91]

One follow-up question.  In some instances the phone number is missing (null) from Table1 but is on Table2.  The measure is returning True for those.  How can I make it return False?

[v-xinruzhu-msft · Accepted solution]

Hi @SteveG_91 

You can try this:

MATCH = IF(ISBLANK(RELATED('Table'[APP_NUM])),FALSE(),CONTAINSSTRING('Table (2)'[PHONE],RELATED('Table'[PHONE_NUM])))

Best Regards!

Yolo

[SteveG_91]

Thanks again, this worked perfectly!

[SteveG_91]

This does just what I needed.  Thank you!!!