TREATAS DAX Function (Table manipulation)

Treats the columns of the input table as columns from other tables.For each column, filters out any values that are not present in its respective output column.


TREATAS ( <Expression>, <ColumnName> [, <ColumnName> [, … ] ] )
Parameter Attributes Description

The expression that generates the set of columns to be remapped.

ColumnName Repeatable

The name of the output column.

Return values

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

A table that contains all the rows in column(s) that are also in Expression.


TREATAS assigns the data lineage of the columns returned by the expression using the columns in the following arguments. The result can be assigned to a variable, because TREATAS is not a filter modifier. The first argument must be a table expression.

The TREATAS function works in Excel since version 1809. However, the function is not reported by IntelliSense and it might be not supported in Excel by Microsoft, yet.

Related articles

Learn more about TREATAS in the following articles:

Related functions

Other related functions are:

Last update: Jan 11, 2021   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

MSDN documentation:

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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.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.


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