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DS2 Reference
 

YYMMw. Format

Writes SAS date values in the form <yy>yyMmm, where M is a character separator to indicate that the month number follows the M and the year appears as either 2 or 4 digits.

Category:Date and Time
Alignment:Right
Note:Beginning in 2025.12, this format supports the BIGINT data type when run in the DS2 language. Set BIGINTPROCESSING=YES to ensure that large integer values—stored as BIGINT—are displayed with full precision, up to 19 digits, without rounding or truncation. BIGINTPROCESSING=YES is recommended for large values that exceed 15–16 digits.

Table of Contents

Syntax

YYMMw.

Required Argument

w

specifies the width of the output field.

Default7
Range5–32
InteractionWhen w has a value of 5 or 6, the date appears with only the last two digits of the year. When w is 7 or more, the date appears with a four-digit year.

Details

The YYMMw. format writes SAS date values in the form <yy>yyMmm. Here is an explanation of the syntax:

<yy>yy

is a two-digit or four-digit integer that represents the year.

M

is the character separator.

mm

is an integer that represents the month.

Comparisons

  • The YYMMw.d format is similar to the YYMMxw.d format, except the YYMMxw.d format contains a separator such as a hyphen, colon, slash, or period between the year and month.

Example

The following examples use the input value of 20999. 20999 is the SAS date value that corresponds to June 29, 2017.

data _null_;
   declare varchar(20) a b c d e ;
   method run();
      a=put(20999,yymm5.);
      b=put(20999,yymm6.);
      c=put(20999,yymm.);
      d=put(20999,yymm7.);
      e=put(20999,yymm10.);
      put a= b= c= d= e=;
   end;
enddata;
run;

SAS writes the following output to the log.

a=17M06 b= 17M06 c=2017M06 d=2017M06 e=   2017M06

See Also

Last updated: September 2, 2026