ISONORAFTER DAX Function (Information)
Funkcja IsOnOrAfter to funkcja logiczna, która emuluje zachowanie klauzuli Start At i zwraca wartość true (prawda) w przypadku wiersza spełniającego wszystkie warunki określone w parametrach tej funkcji.
Syntax
| Parameter | Attributes | Description |
|---|---|---|
| Value1 | Repeatable |
Wyrażenie, które ma zostać porównane z drugim parametrem. |
| Value2 | Repeatable |
Wyrażenie, które ma zostać porównane z pierwszym parametrem. |
| Order | Optional Repeatable |
Kolejność, która ma zostać zastosowana. 0/FALSE/DESC — malejąca; 1/TRUE/ASC — rosnąca. |
Return values
Returns TRUE when the set of values passed as arguments in Value1 is “greater then or equal to” the set of values passed as arguments in Value2.
Remarks
The ISONORAFTER function emulates the behavior of a START AT clause in EVALUATE, and returns TRUE when all of the values passed as argument meet the condition specified.
Usually this function is evaluated in a filter condition during an iteration, applying it to the current row context. However, ISONORAFTER uses the existing evaluation context, so any row context must be created outside of ISONORAFTER, which is not an iterator.
A blank value is matched with BLANK(), in this comparison a blank and an empty string are considered as different values and an empty string is after a blank in ascending order.
Examples
The following query filters the months greater than or equal to October 2008 by using the ISONORAFTER function in the filter condition of FILTER.
EVALUATE
FILTER (
SUMMARIZE (
'Date',
'Date'[Calendar Year],
'Date'[Month],
'Date'[Month Number]
),
ISONORAFTER (
'Date'[Calendar Year], "CY 2008", ASC,
'Date'[Month Number], 10, ASC
)
)
ORDER BY
'Date'[Calendar Year],
'Date'[Month Number]
Last update: Dec 14, 2019 » Contribute » Show contributors
Contributors: Alberto Ferrari, Marco Russo
MSDN documentation: https://docs.microsoft.com/en-us/dax/isonorafter-function-dax