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Comment: Published by Scroll Versions from space DEV and version r0811

D toc

Excerpt

Derives the numeric value for the day of the week (1, 2, etc.). Input must be a reference to a column containing Datetime values.

Info

NOTE: If the source Datetime value does not include a valid input for this function, a missing value is returned.

Tip

Tip:  You can use the the DATEFORMAT function function to generate text versions of the day of the week. See Examples below.

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snippetBasic

Column reference example:

WEEKDAY
d-codelang-syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextderive type:single value:
weekday(MyDate)

weekday(MyDate)

Output:

...

Returns the numeric weekday values derived from

...

the MyDate column.

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snippetSyntax

WEEKDAY
d-codelang-syntax
RawWrangletrue
Typesyntax
showNotetrue
WrangleTextderive type:single value:
weekday(datetime_col)

weekday(datetime_col)


ArgumentRequired?Data TypeDescription
datetime_colYdatetimeName of column whose weekday values are to be computed

D s lang notes

datetime_col

...

  • Missing values for this function in the source data result in missing values in the output.
  • Multiple columns and wildcards are not supported.
Tip

Tip: You cannot insert constant Datetime values as inputs to this function. However, you can use the following: WEEKDAY(DATE(12,20,2017)) .

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snippetusage

Required?Data TypeExample Value
YesDatetimemyDate

...