WEEKDAYNAME Function

Derives the full name from a Datetime value of the corresponding weekday as a String. Source value can be a reference to a column containing Datetime values or a literal.

Nota

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

Wrangle vs. SQL: This function is part of Wrangle, a proprietary data transformation language. Wrangle is not SQL. For more information, see Wrangle Language.

Basic Usage

weekdayname(MyDate)

Output: Returns the weekday name from the MyDate column.

Syntax and Arguments

<span>weekdayname</span><span>(datetime_col)</span>

Argument	Required?	Data Type	Description
datetime_col	Y	datetime	Name of column whose weekday name values are to be computed

For more information on syntax standards, see Language Documentation Syntax Notes.

datetime_col

Name of the column whose weekday name value is to be computed.

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

Usage Notes:

Required?	Data Type	Example Value
Yes	Datetime	myDate

Examples

Suggerimento

For additional examples, see Common Tasks.

Example - Date element functions

This example illustrates to how to use date-related functions to derive specific values for a Datetime column type.

Functions:

Item	Description
YEAR Function	Derives the four-digit year value from a Datetime value. Source value can be a a reference to a column containing Datetime values or a literal.
MONTH Function	Derives the month integer value from a Datetime value. Source value can be a a reference to a column containing Datetime values or a literal.
MONTHNAME Function	Derives the full name from a Datetime value of the corresponding month as a String. Source value can be a reference to a column containing Datetime values or a literal.
WEEKDAYNAME Function	Derives the full name from a Datetime value of the corresponding weekday as a String. Source value can be a reference to a column containing Datetime values or a literal.
DAY Function	Derives the numeric day value from a Datetime value. Source value can be a a reference to a column containing Datetime values or a literal.
HOUR Function	Derives the hour value from a Datetime value. Generated hours are expressed according to the 24-hour clock.
MINUTE Function	Derives the minutes value from a Datetime value. Minutes are expressed as integers from 0 to 59.
SECOND Function	Derives the seconds value from a Datetime value. Source value can be a a reference to a column containing Datetime values or a literal.

Source:

date
2/8/16 15:41
12/30/15 0:00
4/26/15 7:07

Transformation:

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	YEAR (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	MONTH (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	MONTHNAME (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	WEEKDAYNAME (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	DAY (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	HOUR (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	MINUTE (date)

Transformation Name	`New formula`
Parameter: Formula type	Single row formula
Parameter: Formula	SECOND (date)

Results: