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ABAP Keyword Documentation →  ABAP − Reference →  Processing Internal Data →  Character String and Byte String Processing →  Expressions and Functions for String Processing →  String Functions →  Description Functions for Character-Like Arguments 

charlen, dbmaxlen, numofchar, strlen - Length Functions

These length functions have an unnamed character-like argument.

Other versions: 7.31 | 7.40 | 7.54


... func( arg ) ...


The following table shows the length functions with one unnamed argument. The arguments arg of all length functions except dbmaxlen are character-like expression positions. The argument of dbmaxlen is a character-like functional operand position. The return code has the type i for all length functions.

Function func Return Value
charlen Length of first character of arg in thecode page used: 1 for a single Unicode character; 2 forsurrogate pairs.
dbmaxlen Maximum length of a string defined in ABAP Dictionary (RAWSTRING, SSTRING, STRING, or GEOM_EWKB).If the string is unrestricted, the constant abap_max_db_string_ln or abap_max_db_rawstring_ln from thetype group ABAPis returned. The latter is also returned for the built-in ABAP types string and xstring.
numofchar Number of characters in arg, where trailing blanks are not counted in data objects with fixed lengths or in data objects with the type string.
strlen Number of characters in arg, where trailing blanks in data objects withfixed lengths are not counted. They are counted though in data objects with the type string.


The functions described here are some of the functions that can be used in the obsolete extended functional operand positions, even if their argument is a single data object.


The results of the following length determinations are 10 and 5.

  str TYPE string      VALUE `12345     `, 
  txt TYPE c LENGTH 10 VALUE '12345     '. 

cl_demo_output=>display( |{ strlen( str ) 
                       }, { strlen( txt ) }| ).