DMC_FKEY SAP (DMC: Structure for Foreign Key Relations) Structure details

Dictionary Type: Structure
Description: DMC: Structure for Foreign Key Relations




ABAP Code to SELECT data from DMC_FKEY
Related tables to DMC_FKEY
Access table DMC_FKEY




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

DMC_FKEY 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 "DMC: Structure for Foreign Key Relations" 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_DMC_FKEY TYPE DMC_FKEY.

The DMC_FKEY table consists of various fields, each holding specific information or linking keys about DMC: Structure for Foreign Key Relations data available in SAP. These include CHECKFIELD (Field Name), CH_F_GUID (GUID in 'CHAR' format with upper-/lowercase (!)), CH_F_TYPE (DMC: Field Type), FORTABLE (Table of the foreign key field).. 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 DMC_FKEY 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
CHECKTABLECheck table name of the foreign key CHECKTABLECHAR30Assigned to domainAS4TAB
CHECKFIELDField Name FIELDNAMECHAR30Assigned to domainFDNAMEDFD
CH_F_GUIDGUID in 'CHAR' format with upper-/lowercase (!) GUID_22CHAR22SYSUUID_22
CH_F_TYPEDMC: Field Type DMC_FLDTYPCHAR32DMC_FLDTYPDMC_DDTYP_SH
FORTABLETable of the foreign key field FORTABLECHAR30Assigned to domainAS4TAB
FORKEYMWB: Name of foreign key field/ literal DMC_FKEY_VALCHAR30DMC_FKEY_VAL
F_F_GUIDGUID in 'CHAR' format with upper-/lowercase (!) GUID_22CHAR22SYSUUID_22
F_F_TYPEDMC: Field Type DMC_FLDTYPCHAR32DMC_FLDTYPDMC_DDTYP_SH
FORKEY_TYPEMWB: Type of Foreign Key Relationship DMC_FORKEY_TYPENUMC1DMC_FORKEY_TYPE
FORKEY_SEQNRMWB: Sequence Number DMC_SEQNRNUMC4NUMC4

Key field Non-key field



How do I retrieve data from SAP structure DMC_FKEY using ABAP code?

As DMC_FKEY 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 DMC_FKEY as there is no data to select.

How to access SAP table DMC_FKEY

Within an ECC or HANA version of SAP you can also view further information about DMC_FKEY 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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