| Functions and CALL Routines |
Returns the length of a non-blank character string, excluding
trailing blanks, and returns 1 for a blank character string.
| Category: |
Character
|
| Restriction: |
I18N Level 0
|
| Tip: |
DBCS equivalent function is KLENGTH in
SAS National Language Support (NLS): Reference Guide.
|
| Tip: |
The LENGTH function returns a length in bytes, while
the KLENGTH function returns a length in a character based unit.
|
-
string
-
specifies a character constant, variable,
or expression.
The LENGTH function returns an integer
that represents the position of the rightmost non-blank character in string. If the value of string
is blank, LENGTH returns a value of 1. If string
is a numeric constant, variable, or expression (either initialized or uninitialized),
SAS automatically converts the numeric value to a right-justified character
string by using the BEST12. format. In this case, LENGTH returns a value of
12 and writes a note in the SAS log stating that the numeric values have been
converted to character values.
-
The LENGTH and LENGTHN functions return the same
value for non-blank character strings. LENGTH returns a value of 1 for blank
character strings, whereas LENGTHN returns a value of 0.
-
The LENGTH function returns the length of a character
string, excluding trailing blanks, whereas the LENGTHC function returns the
length of a character string, including trailing blanks.
-
The LENGTH function returns the length of a character
string, excluding trailing blanks, whereas the LENGTHM function returns the
amount of memory in bytes that is allocated for a character string.
|
SAS Statements |
Results |
len=length('ABCDEF');
put len;
len2=length(' ');
put len2;
|
6
1
|
Copyright © 2011 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
