ARTICLE
= - Assignment Operator
Syntax
lhs = rhs.
What does it do?
If the character = is specified in a statement between a left
side lhs (or "left hand side" ) and a right side rhs
(or "right hand side" ), it functions like an
assignment operator that assigns
the value of the right side to the left side, possibly using a
conversion .
The right side rhs , the source of the assignment, is a
general expression position and
can be specified as follows:
As a single data object
As a return value or result of
functional methods, predefined functions, or constructor expressions or
table expressions
As a result of calculation expressions
The left side lhs , the target of the assignment, is a both a
declaration position and a
result position and can be specified
as follows:
As any data object that can be specified in a
writer position . The data type of
the data object must either be compatible
with the assigned value or must be convertible to the data type of
lhs in accordance with one of the
conversion rules . If the assigned value does not match the data type
of lhs , the exceptions described in the conversion rules may be
raised.
As an inline declaration DATA(var) . The
data type of the declared variable is determined by the right side and
is described as one of the rhs options. Any variables used on the
right side cannot be declared on the left side. An identically named
data object from a more global context can be used on the right side and
is not hidden by the local declaration until after the statement.
As a writable expression
representing an operand to which the right side can be assigned.
If an exception is raised on the right side, the statement is not
executed and the value of the target field remains unchanged.
Notes
If lhs is not a data object, it can be prefixed with the obsolete
keyword COMPUTE . This keyword is ignored,
however, and should no longer be used.
Another obsolete variant of the assignment is the statement
MOVE rhs TO lhs . Here, the left side is on
the right side and does not cover all options of the assignment operator
= .
ABAP_PGL Assignments with the assignment
operators = and ?= only
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved