Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Join us for an expert-led overview of the tools and concepts you'll need to become a Certified Power BI Data Analyst and pass exam PL-300. Register now.

Reply
kent-culpepper
Frequent Visitor

Reference Value @ Same Power Query

I have a fairly intensive Power Query\ query, i.e. lots of transformation..

 

I want to reference a value within that same query, e.g. a prior quarter value.

 

I am currently duplicating the query and then merging-- but this is hurting the refresh performance.

 

Is there a way to "lookup", or reference, within the same query w/o duplicating\ merging?

1 ACCEPTED SOLUTION
Anonymous
Not applicable

Hi @kent-culpepper ,

You can create a calculated column or measure as below to get it, please find the details in the attachment.

Create a calculated column:

FMV Prior = 
CALCULATE (
    MAX ( 'Table'[FMV] ),
    FILTER (
        'Table',
        'Table'[Investment] = EARLIER ( 'Table'[Investment] )
            && 'Table'[Quarter]
                = EARLIER ( 'Table'[Quarter] ) - 1
    )
)

Create a measure:

Measure = 
VAR _investment =
    SELECTEDVALUE ( 'Table'[Investment] )
VAR _qtr =
    SELECTEDVALUE ( 'Table'[Quarter] )
RETURN
    CALCULATE (
        MAX ( 'Table'[FMV] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Investment] = _investment
                && 'Table'[Quarter] = _qtr - 1
        )
    )

vyiruanmsft_0-1700727219604.png

In addition, you can refer the following links to achieve it in Power Query Editor.

Value from previous row – Power Query, M language – Trainings, consultancy, tutorials

Fast and easy way to reference previous or next rows in Power Query or Power BI

Best Regards

View solution in original post

3 REPLIES 3
kent-culpepper
Frequent Visitor

kentculpepper_0-1700590628071.png

 

Anonymous
Not applicable

Hi @kent-culpepper ,

You can create a calculated column or measure as below to get it, please find the details in the attachment.

Create a calculated column:

FMV Prior = 
CALCULATE (
    MAX ( 'Table'[FMV] ),
    FILTER (
        'Table',
        'Table'[Investment] = EARLIER ( 'Table'[Investment] )
            && 'Table'[Quarter]
                = EARLIER ( 'Table'[Quarter] ) - 1
    )
)

Create a measure:

Measure = 
VAR _investment =
    SELECTEDVALUE ( 'Table'[Investment] )
VAR _qtr =
    SELECTEDVALUE ( 'Table'[Quarter] )
RETURN
    CALCULATE (
        MAX ( 'Table'[FMV] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Investment] = _investment
                && 'Table'[Quarter] = _qtr - 1
        )
    )

vyiruanmsft_0-1700727219604.png

In addition, you can refer the following links to achieve it in Power Query Editor.

Value from previous row – Power Query, M language – Trainings, consultancy, tutorials

Fast and easy way to reference previous or next rows in Power Query or Power BI

Best Regards

KNP
Super User
Super User

Yes, possibly, but you'll need to provide some existing code and explain more specifically what you're trying to do.

 

Have I solved your problem?
Please click Accept as Solution so I don't keep coming back to this post, oh yeah, others may find it useful also ;).
chrome-9xf-Zagzel-B

If you found this post helpful, please give Kudos.
It gives me a sense of instant gratification and, if you give me Kudos enough times, magical unicorns will appear on your screen.
If you find my signature vaguely amusing, please give Kudos.
KIfp67uy-Sr
Proud to be a Super User!PBI-Super-User-Rank-30x30-1x

Helpful resources

Announcements
July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.

Join our Fabric User Panel

Join our Fabric User Panel

This is your chance to engage directly with the engineering team behind Fabric and Power BI. Share your experiences and shape the future.

June 2025 community update carousel

Fabric Community Update - June 2025

Find out what's new and trending in the Fabric community.