SUMMARIZE DAX Function (Table manipulation)

Creates a summary of the input table grouped by the specified columns.


SUMMARIZE ( <Table> [, <GroupBy_ColumnName> [, [<Name>] [, [<Expression>] [, <GroupBy_ColumnName> [, [<Name>] [, [<Expression>] [, … ] ] ] ] ] ] ] )
Parameter Attributes Description

The input table.

GroupBy_ColumnName Optional

A column to group by or a call to ROLLUP function to specify a list of columns to group by with subtotals.

Not recommended

A column name to be added.

Row Context
Not recommended

The expression of the new column is executed in both a row context and a filter context.

Return values

Table An entire table or a table with one or more columns.

A table with the selected columns for the GroupBy_ColumnName arguments and the summarized columns designed by the name arguments.


The GroupBy_ColumnName must be either in table or in a related table to Table.

SUMMARIZE should not be used to add columns. As an alternative, use SUMMARIZECOLUMNS or ADDCOLUMNS / SUMMARIZE.

Related articles

Learn more about SUMMARIZE 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

  • From SQL to DAX: Grouping Data

    The GROUP BY condition of a SQL statement is natively implemented by SUMMARIZE in DAX. This article shows how to use SUMMARIZE and an alternative syntax to group data. » Read more

  • From SQL to DAX: Projection

    This article describes projection functions and techniques in DAX, showing the differences between SELECTCOLUMNS, ADDCOLUMNS, and SUMMARIZE. » Read more

Related functions

Other related functions are:

Last update: Sep 15, 2020   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

MSDN documentation:

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.


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.


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


This parameter is deprecated and its use is not recommended.


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