LEFT DAX Function (Text)

Returns the specified number of characters from the start of a text string.


LEFT ( <Text> [, <NumberOfCharacters>] )
Parameter Attributes Description

The text string containing the characters you want to extract.

NumberOfCharacters Optional

The number of characters you want LEFT to extract; if omitted, 1.

Return values

Scalar A single string value.

A text string.

Related functions

Other related functions are:

Last update: Dec 14, 2018   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

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


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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