Comments
ABAP OPEN DATASET Statement syntax, information and example SAP source code
OPEN DATASET
Short Reference
ABAP Syntax_1
mode [ position ]
os_additions ]
error_handling ].
What does it do? This statement opens the file specified in dset for the access specified in access
in a storage mode specified in mode
. dset expects a character-like data object containing the physical name of the file. The file must not yet be open in the current program; otherwise a handleable exception is raised.
Use the additions positions , os_addition , and error_handling to determine the position at which file is opened, specify platform-specific additions, and influence error handling.
Latest notes: Up to 100 files can be opened per internal session. The actual maximum number of simultaneously open files may be less, depending on the platform.
When a file is opened, automatic authorization checks are performed;
self-programmed checks may also be necessary.
Security Note
When specified dynamically, dset is a dynamic programming technique and can present a serious security risk if not used correctly. If the content of dset is used in a program from an external source, it must first be checked thoroughly. See Directory Traversal .
ABAP_SUBRC_GENERAL
sy-subrc Meaning
0The file was opened.
8The operating system could not open the file.
Runtime Exceptions
Catchable Exceptions
CX_SY_FILE_OPEN
Reason for error: The file is already open.
Runtime error: DATASET_REOPEN
CX_SY_CODEPAGE_CONVERTER_INIT
Reason for error: The desired conversion is not supported. (Due to
specification of invalid code page or of language not supported in the
conversion, with SET LOCALE LANGUAGE .)
Runtime error: CONVT_CODEPAGE_INIT
CX_SY_CONVERSION_CODEPAGE
Reason for error: Internal error in the conversion.
Runtime error: CONVT_CODEPAGE
CX_SY_FILE_AUTHORITY
Reason for error: No authorization for access to file
Runtime error: OPEN_DATASET_NO_AUTHORITY
Reason for error: Authorization for access to this file is missing in
OPEN DATASET with addition FILTER .
Runtime error: OPEN_PIPE_NO_AUTHORITY
CX_SY_PIPES_NOT_SUPPORTED
Reason for error: The operating system does not support pipes.
Runtime error: DATASET_NO_PIPE
CX_SY_TOO_MANY_FILES
Reason for error: Maximum number of open files exceeded.
Runtime error: DATASET_TOO_MANY_FILES
Non-catchable Exceptions
Reason for error: An attempt was made to open a pipe that is already open.
Runtime error: DATASET_PIPE_POSITION
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved
