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Dear all,
In my fact table, I have 2 ID columns(column A and column B) that may have 3 kind of relationship:
1. One-to-One: 1 ID in column A is related to 1 ID in column B
2. One-to-Many: 1 ID in column A is related to many ID in column B
3. Many-to-One: Many ID in column A is related to one ID in column B.
I need to create another column ( in this case I need to create Measure as I connected to live PBI dataset) , and my expected result would be:
Column A | Column B | Category |
A1 | B1 | 1-1 |
A2 | B2 | 1-M |
A2 | B3 | 1-M |
A3 | B4 | M-1 |
A4 | B4 | M-1 |
Any tips/ help on how can I achieve this objective? Many thanks!
Solved! Go to Solution.
Hi,
If you want to check creating a measure, please check the below picture and the attached pbix file.
Category measure: =
VAR currentA =
MAX ( Data[Column A] )
VAR currentB =
MAX ( Data[Column B] )
RETURN
SWITCH (
TRUE (),
COUNTROWS ( VALUES ( Data[Column A] ) ) = 1
&& CALCULATE (
COUNTROWS ( VALUES ( Data[Column B] ) ),
FILTER ( ALL ( Data ), Data[Column A] = currentA )
) = 1
&& CALCULATE (
COUNTROWS ( data ),
FILTER ( ALL ( Data ), Data[Column B] = currentB )
) = 1, "1-1",
COUNTROWS ( VALUES ( Data[Column A] ) ) = 1
&& CALCULATE (
COUNTROWS ( VALUES ( Data[Column B] ) ),
FILTER ( ALL ( Data ), Data[Column A] = currentA )
) > 1, "1-M",
COUNTROWS ( VALUES ( Data[Column A] ) ) = 1
&& CALCULATE (
COUNTROWS ( VALUES ( Data[Column B] ) ),
FILTER ( ALL ( Data ), Data[Column A] = currentA )
) = 1
&& CALCULATE (
COUNTROWS ( data ),
FILTER ( ALL ( Data ), Data[Column B] = currentB )
) > 1, "M-1"
)
If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.
Hi,
If you want to check creating a measure, please check the below picture and the attached pbix file.
Category measure: =
VAR currentA =
MAX ( Data[Column A] )
VAR currentB =
MAX ( Data[Column B] )
RETURN
SWITCH (
TRUE (),
COUNTROWS ( VALUES ( Data[Column A] ) ) = 1
&& CALCULATE (
COUNTROWS ( VALUES ( Data[Column B] ) ),
FILTER ( ALL ( Data ), Data[Column A] = currentA )
) = 1
&& CALCULATE (
COUNTROWS ( data ),
FILTER ( ALL ( Data ), Data[Column B] = currentB )
) = 1, "1-1",
COUNTROWS ( VALUES ( Data[Column A] ) ) = 1
&& CALCULATE (
COUNTROWS ( VALUES ( Data[Column B] ) ),
FILTER ( ALL ( Data ), Data[Column A] = currentA )
) > 1, "1-M",
COUNTROWS ( VALUES ( Data[Column A] ) ) = 1
&& CALCULATE (
COUNTROWS ( VALUES ( Data[Column B] ) ),
FILTER ( ALL ( Data ), Data[Column A] = currentA )
) = 1
&& CALCULATE (
COUNTROWS ( data ),
FILTER ( ALL ( Data ), Data[Column B] = currentB )
) > 1, "M-1"
)
If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.
dear @Jihwan_Kim ,
Thanks a lot! It works perfectly fine.
I wish to add another rules where Column A = "NA", then the category = Blank().
I added this logic as 1st rule:
@kilala , Try to have new column like
New column =
var _1 = countx(filter(Table, [Column A] = earlier([Column A]) ), [Column B])
var _2 = countx(filter(Table, [Column B] = earlier([Column B]) ), [Column A])
return
Switch(True() ,
_1 =1 && _2 =1, "1-1" ,
_1 =1 && _2 >1, "1-M" ,
_1 >1 && _2 =1, "M-1" ,
"M-M"
)
Hi, tanks for the reply! Unfortunately, I cannot create new column as I connecting to live data. I am only able to create measures.
However, I tried your approach but an error shows here:
var _1 = countx(filter(Table, [Column A] = earlier([Column A]) ), [Column B])
error message:
Parameter is not correct type; cannot find name [Column A]
please help!
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