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ABAP Keyword Documentation →  ABAP − Release-Specific Changes →  Changes in Release 6.10 

Character Strings in Release 6.10

The following new functions are available for character strings in Release 6.10:


1. Establish the length and number of characters


2. New statements FIND and REPLACE


3. Faster access to strings

4. Support for strings in the database

5. Definition of string constants

6. Introduction of text string literals

Other versions: 7.31 | 7.40 | 7.54

Modification 1

Establishing the length and number of characters

  • The function charlen provides the length of the first character of a string or of a character-like field.
  • You can use numofchar to obtain the number of characters in a string or a character-type field.
  • dbmaxlen provides the maximum length of the string as stored in ABAP Dictionary.

    • Modification 2

    New statements FIND and REPLACE

    There is a new statement, FIND, for searching in character strings. This replaces the SEARCH command. For replacing characters in character strings, the statement REPLACE has been extended to include position-based replacements.

    Modification 3

    Faster access to strings

    Offset/length access is now the fastest way to process a string character by character. This technique is also faster than searching in a field of type C that is assigned to a field symbol.

    Modification 4

    Support for strings in the database

    From Release 6.10, character strings and binary data can be stored in database columns of types STRING or RAWSTRING. The system differentiates between short and long strings:

  • Short strings consist of a maximum of 256 characters, do not have trailing blanks, and can be compared on the database.
  • Long strings can be of any length and do have trailing blanks; however they cannot be compared on the database.

    • When working with strings, some restrictions have to be observed. Further details are available here.

    Modification 5

    Defining string constants

    Strings can now also be defined as constants and can be given an initial value using the keyword VALUE.

    CONSTANTS str1 TYPE string VALUE 'ABC'.
    DATA      str2 TYPE string VALUE 'XYZ'.
    str2 = str1.
    str1 = str2.              "Syntax error
    WRITE: / str1, str2.

    Modification 6

    Introduction of text string literals

    Text string literals are enclosed by backquotes in the form str = ABC. String literals are of data type STRING and trailing blanks are not ignored, unlike in text field literals.

    DATA: str1 TYPE string VALUE 'ABC  ', 
      str2 TYPE string VALUE `ABC  `, 
      cnt1 TYPE i, 
      cnt2 TYPE i. 
cnt1 = strlen( str1 ). 
cnt2 = strlen( str2 ). 
WRITE: / cnt1, cnt2.

    The length for the string str1 is cnt1 = 3 and the length for the string str2 is cnt2 = 5.