ROLLUP DAX Function (Table manipulation)

Identifies a subset of columns specified in the call to SUMMARIZE function that should be used to calculate subtotals.

Syntax

ROLLUP ( <GroupBy_ColumnName> [, <GroupBy_ColumnName> [, … ] ] )
Parameter Attributes Description
GroupBy_ColumnName Repeatable

The GroupBy_ColumnName parameter must be a qualified name of an existing column to be used to create summary groups based on the values found in it.
The parameter cannot be an expression.

Remarks

The ROLLUP function is used exclusively within SUMMARIZE.

The columns mentioned in the ROLLUP expression cannot be referenced as part of a GroupBy_columnName columns in SUMMARIZE.

Related articles

Learn more about ROLLUP in the following articles:

  • Best Practices Using SUMMARIZE and ADDCOLUMNS

    Everyone using DAX is probably used to SQL query language. Because of the similarities between the Tabular data modeling and the relational data modeling, there is the expectation that you can perform the same operations as those allowed in SQL. However, in its current implementation DAX does not permit all the operations that you can […] » Read more

  • All the secrets of SUMMARIZE

    SUMMARIZE is a function that looks quite simple, but its functionality hides some secrets that might surprise even seasoned DAX coders. In this article, we analyze the behavior of SUMMARIZE, in order to completely describe its semantic. The final advice might surprise you: we will suggest to avoid the use of SUMMARIZE in your code, […] » Read more

Related functions

Other related functions are:

Last update: Dec 13, 2018   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

DAX Conventions
Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.

Iterator

Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.

Deprecated

This function is deprecated. Jump to the Alternatives section to see the function to use.

Deprecated

This parameter is deprecated and its use is not recommended.

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