SELECTCOLUMNS DAX Function (Table manipulation)

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

Syntax

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

The table from which columns are selected.

Name Repeatable

The name of the new column to be added.

Expression
Row Context
Repeatable

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.

Remarks

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.

Related functions

Other related functions are:

Last update: Oct 20, 2018   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

MSDN documentation: https://msdn.microsoft.com/en-us/query-bi/dax/selectcolumns-function-dax

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.

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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