ARTICLE
General Expression Positions
General expression positions are reader
positions in which suitable data objects
, constructor expressions ,
table expressions ,
calculation expressions ,
predefined functions , or
functional methods and
method chainings can be specified.
The following general expression positions exist:
Right side of an assignment with the assignment
operator =
Operands of arithmetic expressions and of
bit expressions ,
Embedded expressions in
string templates ,
Operands of comparison expressions
in logical expressions
Operand of the statement CASE ,
Actual parameters for input parameters of
methods in meth( ...) ,
RAISE EVENT ,
CREATE OBJECT , and RAISE
EXCEPTION .
Actual parameters for input parameters of
function modules in the case of
CALL FUNCTION .
Arguments of predefined
numerical functions if they are
themselves executed in an arithmetic expression.
The operands behind the addition WITH TABLE KEY of the statements
READ TABLE itab and
DELETE TABLE itab .
The operands behind the addition WITH KEY
of the statement READ TABLE itab .
Work area wa of the statements
APPEND wa TO ...
INSERT wa INTO ...
MODIFY ... FROM wa ...
Expression exp for dynamic sorts in the case of
SORT itab BY exp
Source fields of the statements WRITE and
WRITE TO , with the restriction that
arithmetic expressions and
bit expressions cannot be specified
directly, only as embedded
expressions in string templates .
The type restrictions defined by the operand
type apply in the operand positions. For example, no
numerical functions can be
specified in a bit expression.
Notes
Specifying functional methods as
actual parameters of methods enables the nesting of method calls in an
operand position.
The three types of calculation
expression can be executed as operands of relational expressions, but
they cannot be mixed in one calculation expression.
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved
