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Character String and Byte String Processing in ABAP Release 7.0, EhP2 ITOC
Latest notes: The program DEMO_EXPRESSIONS provides examples of character string and byte string processing for ABAP_RELEASE 7.0, EhP2. ABAP_HINT_END
ABAP_MODIFICATION_NN String Expressions
The new string expressions enhance the previous calculation expressions and enable character string processing at specific operand positions. A string expression is either a string template or a concatenation with operator .
ABAP_MODIFICATION_NN String Templates
String templates have been introduced as a new way of creating character strings. A string template is enclosed between two | characters and creates a character string in a string expression from a
literal text,
embedded expressions, and
control characters. String templates replace the WRITE TO statement to a large extent.
ABAP_MODIFICATION_NN Concatenation Operator
The concatenation operator is a new string operator that concatenates together two character-like operands as one operand in a string expression. The concatenation operator replaces the CONCATENATE statement to a large extent.
ABAP_MODIFICATION_NN String Functions
String functions have been introduced as a new type of embedded function. There are
Search functions
a similarity function
Processing functions The Boolean function boolc can also be considered a string function. The string functions enable many character string processing tasks to be performed in operand positions where separate statements and helper variables were required previously.
ABAP_MODIFICATION_NN Bit Functions
Bit functions have been introduced as a new type of embedded function. A bit function (bit-set) currently exists for setting bits. The Boolean function boolx can also be considered a bit function.
ABAP_MODIFICATION_NN Management of Short Strings
The internal management of short stings has been optimized to reduce the memory overhead that accumulates when short strings are managed for the relevant string header. For string lengths of less than 30 characters or 60 bytes, the string header now only requires between 10 and 40 bytes. For longer strings, this remains at approximately 50 bytes. Before ABAP_RELEASE 7.0, EhP2, the overhead of the string header was not related to the length of the string and was approximately 60 bytes for each string. Strings are recommended instead of data objects for all character string and byte string operations where a fixed length is not important.
Latest notes: This change is also available before EhP2 if a kernel greater than ABAP_RELEASE 7.0 is used. ABAP_HINT_END
ABAP_MODIFICATION_NN Streaming for Strings
The new streaming concept supports strings.
ABAP_MODIFICATION_NN Any Start Values for Data Objects of Typexstring
From ABAP_RELEASE 7.0, EhP2, any suitable start value val can be specified for xstring after the addition VALUE for statements DATA, CONSTANTS and so on. Previously, only IS INITIAL was possible.
ABAP_MODIFICATION_NN Maximum Length of Data Objects of Typesc, n, and x
The maximum length of data objects of types c and n has been increased from 65535 to 262143. The maximum length of data objects of type x has been increased from 65535 to 524287.
