WRITE - Output to a variable ( SAP ABAP keyword)

WRITE ( Output to a variable ) is a keyword used in SAP ABAP programming.This tutorial covers its introduction & syntax details.

WRITE - Output to a variable


Variants


1. WRITE f TO g[+off][(len)].
2. WRITE f TO itab[+off][(len)] INDEX idx.

Variant 1
WRITE f TO g[+off][(len)].

Addition


... option

Effect
Assigns the contents of the source field f to the target field g as a new value.

In contrast to MOVE , the format of the target field g is the same as when outputting to a list with WRITE . The field type C is always used, regardless of the actual data type.

As with list output, the settings in the user's master record for decimal point (period or comma) and date format are taken into account.

Other formatting options are also possible with list output.

Instead of specifying a static source field f , you can make a dynamic source field specification (name) . In this case, the contents of the field name is interpreted as the source field name at runtime and the contents are formatted accordingly.

You can identify the target field g more precisely by specifying the offset and/or length in the form g+off(len) . Both the offset and the length specifications off and len can also be dynamic.

The return code value SY-SUBRC is undefined.


Example
WRITE ... TO with dynamic source field specification and dynamic offset and length specification for the target field:


DATA: NAME(5) VALUE 'FIELD',
FIELD(5) VALUE 'Harry',
DEST(18) VALUE 'Robert James Smith',
OFF TYPE I,
LEN TYPE I.

OFF = 7.
LEN = 8.
WRITE (NAME) TO DEST+OFF(LEN).


The field DEST noew contains the value " Robert Harry ith ".

Notes
Only values between 0 and the length of the target field g are allowed as offset specifications. Any other offset specifications result in a runtime error.
Only values >= 0 are allowed as length specifications. Negative length specifications result in a runtime error. Excessive length specifications are automatically truncated.
If you specify the field length as the offset or the value 0 as the length, the target field is blank. In this case, the statement has no effect.

Addition
... option

Effect
Modifies the output format with the aid of special formatting options .

Variant 2
WRITE f TO itab[+off][(len)] INDEX idx.

Additions like variant 1.

Effect
Like variant 1, except that output is to the idx -th line of the internal table itab .

Ayn offset and/or length specifications refer to the table line used for output.

The return code value is set as follows:


SY-SUBRC = 0 Valid index specification, i.e. the internal table itab contains a line with the index idx .

SY_SUBRC = 4 Index specification is too large, i.e. the internal table itab contains fewer than idx entries.

Note
Invalid index specifications, i.e. idx <= 0, result in a runtime error.

Note
Runtime errors

WRITE_TO_LENGTH_NEGATIVE : Negative length specification in len .

WRITE_TO_OFFSET_NEGATIVE : Negative offset specification in off .

WRITE_TO_OFFSET_TOOLARGE : Offset specification in off is greater than field length.

TABLE_INVALID_INDEX : Invalid index specification <= 0 in idx (variant 2 only).

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