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MID Function (DAX)

Returns a string of characters from the middle of a text string, given a starting position and length.

Syntax

MID(<text>, <start_num>, <num_chars>)

Parameters

Term

Definition

text

The text string from which you want to extract the characters, or a column that contains text.

start_num

The position of the first character you want to extract. Positions start at 1.

num_chars

The number of characters to return.

Property Value/Return Value

A string of text of the specified length.

Remarks

Whereas Microsoft Excel has different functions for working with single-byte and double-byte characters languages, PowerPivot for Excel uses Unicode and stores all characters with the same length.

Example

The following examples return the same results, the first 5 letters of the column, [ResellerName]. The first example uses the fully qualified name of the column and specifies the starting point; the second example omits the table name and the parameter, num_chars.

=MID('Reseller'[ResellerName],5,1))
=MID([ResellerName,5])

The results are the same if you use the following formula:

=LEFT([ResellerName],5)

See Also

Other Resources