STARTOFMONTH Function (DAX)
Returns the first date of the month in the current context for the specified column of dates.
Syntax
STARTOFMONTH(<dates>)
Parameters
Term |
Definition |
dates |
A column that contains dates. |
Return Value
A table containing a single column and single row with a date value.
Remarks
Note
To understand more about how context affects the results of formulas, see Context in DAX Formulas.
The dates argument can be any of the following:
A reference to a date/time column.
A table expression that returns a single column of date/time values.
A Boolean expression that defines a single-column table of date/time values.
Note
Constraints on Boolean expressions are described in the topic, CALCULATE Function (DAX).
Example
The following sample formula creates a measure that returns the start of the month, for the current context.
To see how this works, create a PivotTable and add the fields CalendarYear and MonthNumberOfYear to the Row Labels area of the PivotTable. Then add a measure, named StartOfMonth, using the formula defined in the code section, to the Values area of the PivotTable.
=STARTOFMONTH(DateTime[DateKey])
See Also