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BarryFletcher's avatar
BarryFletcher
Helper III
1 year ago
Solved

Match & Sum values from another table?

Hi all,

 

I am looking for help please?

 

I have 2 tables - 1 table has a column called Line number.

My second table also has a column called line number but it could have 5 rows with that lne number.

How can I list the 5 items from the second table

and sum the lunghts based on the line number in the first table?

 

So table one would contain something like this:

 

NameLine Number
  
Barry12345
Tom45678

 

and table 2 would have data such as below:

 

Line number Length
123451
123452
456785
456783

 

I would like to get the sum of rows from table 2, based on the line number value in table 1?

 

Hope that makes sense?

  • Hi! Your first table, the one with name and line number (line number being unique) is your dimension table. Your second table (the one with multiple rows with the same line number) is your fact table. Create a join between the two tables. In the model tab, you should see a line go from dim to fact and see a 1 by the dim table, a * by the fact table (indicating a 1 to M  join) and an arrow pointing at the fact table (which signifies that the dim table will filter the fact table. Next, create a measure for the length like this Length = SUM('YourFactTableName'[Length]). Add a table visual (or whatever viz you want) and put in the line number from your dim table and the measure you created.

4 Replies

  • Hi! Your first table, the one with name and line number (line number being unique) is your dimension table. Your second table (the one with multiple rows with the same line number) is your fact table. Create a join between the two tables. In the model tab, you should see a line go from dim to fact and see a 1 by the dim table, a * by the fact table (indicating a 1 to M  join) and an arrow pointing at the fact table (which signifies that the dim table will filter the fact table. Next, create a measure for the length like this Length = SUM('YourFactTableName'[Length]). Add a table visual (or whatever viz you want) and put in the line number from your dim table and the measure you created.

    • BarryFletcher's avatar
      BarryFletcher
      Helper III

      Thank you so uch for the help and the quick reply - worked a treat.