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ABAP Keyword Documentation → ABAP − Reference → Processing External Data → ABAP File Interface → Statements for the ABAP File Interface → OPEN DATASET →
OPEN DATASET - error_handling
Syntax
... [MESSAGE msg]
[IGNORING CONVERSION ERRORS]
[REPLACEMENT CHARACTER rc] ... .
Extras:
1. ... MESSAGE msg
2. ... IGNORING CONVERSION ERRORS
3. ... REPLACEMENT CHARACTER rc
Effect:
These additions allow the system to receive operating system
messages, suppress exceptions, and define a replacement character for unknown characters if an error occurs.
... MESSAGE msg
Effect:
If an error occurs when a file is opened, the corresponding operating system message is assigned to
the data object msg. A character-type variable can be entered for msg.
Example:
Operating system message issued after an attempt to open a file with an empty name.
DATA mess TYPE string.
OPEN DATASET `` FOR INPUT IN BINARY MODE MESSAGE mess.
IF sy-subrc = 8.
MESSAGE mess TYPE 'I'.
ENDIF.
... IGNORING CONVERSION ERRORS
Effect:
This addition can be used to suppress a treatable exception defined by the class CX_SY_CONVERSION_CODEPAGE. This exception can be triggered during reading or writing if conversion between codepages takes place and a character cannot be converted to the target codepage.
This addition is possible when opening text files,
legacy text files, or
legacy binary files, but not when opening
binary files.
Notes
... REPLACEMENT CHARACTER rc
Effect:
If a conversion between codepages takes place while data is being read or written, every character that cannot be converted to the target codepage is replaced with the character specified in rc. For rc, a character-type data object with a single character is expected. If the addition is not specified, the character "#" is used as a replacement character.
This addition is possible when opening text files,
legacy text files, or
legacy binary files, but not when opening
binary files.
Notes