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D toc
Excerpt

Generates a date value from three inputs of Integer type: year, month, and day.

  • Source values can be Integer literals or column references to values that can be inferred as Integers.
  • If any of the source values are invalid or out of range, a missing value is returned.
  • This function must be nested within another function that accepts date values as arguments. See the example below.

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snippetBasic

Integer literal values:

D code

derive value: DATEFORMAT(DATE(2015,02,15),'yyyy-MM-dd')

Output: Generates a column of values containing the formatted date value: 2015-02-15.

Column reference values:

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derive value: DATEFORMAT(DATE(myYear, myMonth, myDay),'MMM yyyy')

Output: Generates a column of date values where:

  • MMM = short value for myMonth
  • yyyy = value from myYear

D s
snippetSyntax

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derive value:DATEFORMAT(date(year_integer_col,month_integer_col,day_Integer_col ),'date_format_string')

ArgumentRequired?Data TypeDescription
year_integer_colYintegerName of column or Integer literal representing the year value to apply to the function
month_integer_colYintegerName of column or Integer literal representing the month value to apply to the function
day_integer_colYintegerName of column or Integer literal representing the day value to apply to the function
date_format_stringYstringString literal identifying the date format to apply to the value

d-s-lang-notes

year_integer_col

Integer literal or name of the column containing integer values for the year.

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

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snippetusage

 

Required?Data TypeExample Value
YesInteger (literal or column reference)2015

month_integer_col

Integer literal or name of the column containing integer values for the month. 

  • Values must be 1 or more, with a maximum value of 12.
  • Missing values for this function in the source data result in missing values in the output.
  • Multiple columns and wildcards are not supported.

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snippetusage

Required?Data TypeExample Value
YesInteger (literal or column reference)4

day_integer_col

Integer literal or name of the column containing integer values for the day.

  • Values must be 1 or more, with a maximum value for any month of 31.
  • Missing values for this function in the source data result in missing values in the output.
  • Multiple columns and wildcards are not supported.

D s
snippetusage

Required?Data TypeExample Value
YesInteger (literal or column reference)26

date_format_string

For more information on supported data formatting strings, see Supported Data Types.

For more information, see DATEFORMAT Function.

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snippetExamples

Example - date and time functions 

Include Page
EXAMPLE - DATE and TIME Functions
EXAMPLE - DATE and TIME Functions

D s also
labeldate