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ABAP ASSIGN MEM AREA Statement syntax, information and example SAP source code



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ASSIGN - mem_area

Short Reference

ABAP Syntax ...
static_dobj
| dynamic_dobj
| dynamic_access
| writable_exp ... .

ABAP_ALTERNATIVES:
Static Specification

1 ... static_dobj

Dynamic Specifications

2. ... dynamic_dobj

3. ... dynamic_access

Specifying an Expression

4. ... writable_exp

What does it do? mem_area is used to specify the memory area that is assigned to the field symbol.
The first variant static_dobj
is a static variant that is assigned a statically defined data object or part of one of these objects.
The second and third variants are dynamic. The variants dynamic_dobj are used for general dynamic access to data objects; the variants dynamic_access are used for dynamic access to the attributes of classes.
The result of a writable expression is assigned in the fourth variant.
In an inline declaration of the field symbol with FIELD-SYMBOL( fs ) , the typing of the field symbol is performed for the static variant and for a specified expression with the data type mem_area . In the dynamic variants, the typing is performed with the generic type data .
The variants differ in the way that the system behaves after a successful assignment:
The return code sy-subrc is not set for the static variant.
In dynamic variants and when a
table expression is specified, the statement ASSIGN sets the return code sy-subrc .

Latest notes: In an internal table with a
header line , either the header line or the table body can be assigned to a field symbol. In the statement ASSIGN , the name of an internal table with a header line addresses the header line. To address the table body,
[] must be appended to the name in the usual way. A field symbol to which a table body is assigned behaves in the same way in operand positions as a table without a header line.
Field symbols to which data objects or parts of data objects are assigned in the heap are memory-preserving, like heap references .
In an inline declaration of the field symbol with FIELD-SYMBOL( fs ) , the data type of the assigned memory area determines the typing of the field symbol.
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved




ASSIGN_LOCAL_COPY
ASSIGN_MEM_AREA_DYNAMIC_ACCESS




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