Page tree

Trifacta Dataprep



Contents:

   

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.

NOTE: 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

monthname(MyDate)

Output: Returns the month name from the MyDate column.

Syntax and Arguments

<span>monthname</span><span>(datetime_col)</span>


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

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

datetime_col

Name of the column whose month 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 TypeExample Value
YesDatetimemyDate

Examples


Tip: 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:

ItemDescription
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:

NOTE: If the source Datetime value does not contain a valid input for one of these functions, no value is returned. See the second_date column below.

dateyear_datemonth_datemonthname_dateweekdayname_dateday_datehour_dateminute_datesecond_date
2/8/16 15:4120162FebruaryMonday81541 
12/30/15 0:00201512DecemberWednesday3000 
4/26/15 7:0720154AprilSunday2677 

See Also for EXAMPLE - Date Functions:

This page has no comments.