SELECTCOLUMNS DAX Function (Table manipulation)

Returns a table with selected columns from the table and new columns specified by the DAX expressions.


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

The table from which columns are selected.

Name Repeatable

The name of the new column to be added.

Row Context

The expression for the new column to be added.

Return values

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

A table with the same number of rows as the table specified as the first argument. The returned table has one column for each pair of Name, Expression arguments, and each expression is evaluated in the context of a row from the specified Table argument.


SELECTCOLUMNS has the same signature as ADDCOLUMNS, and has the same behavior except that instead of starting with the <Table> specified, SELECTCOLUMNS starts with an empty table before adding columns.
SELECTCOLUMNS keep the data lineage of the columns assigned to a simple column reference. Any different expression breaks the data lineage.

Related articles

Learn more about SELECTCOLUMNS in the following articles:

Related functions

Other related functions are:

Last update: Feb 25, 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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