/SDF/SYST SAP (System Fileds in ABAP/4 Programs (R3)) Structure details

Dictionary Type: Structure
Description: System Fileds in ABAP/4 Programs (R3)




ABAP Code to SELECT data from /SDF/SYST
Related tables to /SDF/SYST
Access table /SDF/SYST




Structure field list including key, data, relationships and ABAP select examples

/SDF/SYST is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "System Fileds in ABAP/4 Programs (R3)" Information within sap ABAP programs.

This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately.

i.e. DATA: wa_/SDF/SYST TYPE /SDF/SYST.

The /SDF/SYST table consists of various fields, each holding specific information or linking keys about System Fileds in ABAP/4 Programs (R3) data available in SAP. These include DAYST (Summer Time Active? ('DAylight Saving Time')), LANGU (Language Key of SAP Logon), MANDT (Client Number of SAP Logon), DBSYS (System: Database system).. See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .

Delivery Class:
Display/Maintenance via tcode SM30: Display/Maintenance Allowed but with Restrictions
SAP enhancement categories: Not classified


SAP /SDF/SYST structure fields - Full list of fields found in SAP data dictionary

Field Description Data Element Data Type length (Dec) Check table Conversion Routine Domain Name MemoryID SHLP
TZONE Time Difference to 'Greenwich Mean Time' (UTC) in sec.0
DAYST Summer Time Active? ('DAylight Saving Time')0
LANGU Language Key of SAP Logon0
MANDT Client Number of SAP Logon0
DBSYS System: Database system0
DCSYS SYSTEM: Dialog System0
SYSID SYSTEM: SAP System Identification0
OPSYS SYSTEM: Operating System0
SAPRL System: SAP Release0
DATUM SYSTEM: Date of Day0
UZEIT SYSTEM: Time0
UNAME SESSION: Name of user from SAP logon0
ABCDE CONSTANT: Alphabet (A,B,C,...)0
HOST Computer Name0
LOCDB LOcal Database exists0
DATLO Local Date at User0
TIMLO Local Time at User0
TSTLO Time stamp (Date and Time) at User0
ZONLO Time Zone of User0
DATUT Global Date at UTC (GMT)0
TIMUT Global Time at UTC (GMT)0
TSTUT Time stamp (Date and Time) at UTC (GMT)0

Key field Non-key field



How do I retrieve data from SAP structure /SDF/SYST using ABAP code?

As /SDF/SYST is a database structure and not a table it does not store any data in the SAP data dictionary. The ABAP SELECT statement is therefore not appropriate and can not be performed on /SDF/SYST as there is no data to select.

How to access SAP table /SDF/SYST

Within an ECC or HANA version of SAP you can also view further information about /SDF/SYST and the data within it using relevant transactions such as

SE11 (ABAP Dictionary Maintenance)
SM30 (Maintain Table Data)
SE80 (Object Navigator)
SE16 (Data Browser).


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