DISTINCT DAX Function (Table manipulation)
Returns a one column table that contains the distinct (unique) values in a column, for a column argument. Or multiple columns with distinct (unique) combination of values, for a table expression argument.
Syntax
| Parameter | Attributes | Description |
|---|---|---|
| ColumnNameOrTableExpr |
The column (or table expression) from which unique values (or combination of values) are to be returned. |
Return values
A column of unique values if the parameter is a single column. If the parameter is a table expression, the result has the same columns and remove only duplicated rows.
Remarks
If the parameter is a single table, the result of DISTINCT is affected by the current filter context. In this case it is importa to understand the differences with VALUES, which might add an additional blank row in certain conditions.
If the parameter is a table expression, DISTINCT returns a table by removing duplicate rows provided by the table expression.
Related articles
Learn more about DISTINCT in the following articles:
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Difference between DISTINCT and VALUES in DAX
This short post describes the differences between DISTINCT and VALUES. » Read more
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/distinct-function-dax