Returns the first value in the column, column, filtered by the current context, where the expression is not blank.




Term Definition
column A column expression.
expression An expression evaluated for blanks for each value of column.

Property Value/Return value

A table containing a single column and single row with the computed first value.


The column argument can be any of the following:

  • A reference to any column.

  • A table with a single column.

  • A Boolean expression that defines a single-column table .


Constraints on Boolean expressions are described in the topic, CALCULATE function (DAX).

This function is typically used to return the first value of a column for which the expression is not blank. For example, you could get the last value for which there were sales of a product.

This DAX function is not supported for use in DirectQuery mode. For more information about limitations in DirectQuery models, see

See also

Statistical functions (DAX)
DAX function reference