Relationship definitions — the ABAP Dictionary's foreign-key registry: for every checked field on every table, which check table it points to, the cardinality of that relationship, and the error message raised on violation. DD08L is what turns a crosswalk's asserted foreign-key relationship ('this field points to that check table') into a checkable fact: the mirror can confirm the relationship actually exists in the customer's own dictionary, with the customer's own cardinality and check semantics, rather than accept it as declared. Table carried complete — this is exactly the kind of small, high-leverage check table the model depends on being exhaustive.
Hover a canonical name to see the legacy SAP field name
| Canonical name | Concept | Description | Data element | Type | Check table |
|---|---|---|---|---|---|
| TBL_NOM key | tabula nomen | Table Name | TABNAME | CHAR 30 | DD02L |
| NOM_CMP key | nomen campus | Name of the field to be checked | FORFIELD | CHAR 30 | DD03L |
| STA_OBI key | status obiectum | Activation Status of a Repository Object | AS4LOCAL | CHAR 1 | — |
| VRS | versio | Version of the entry (not used) | AS4VERS | NUMC 4 | — |
| TPB_NOM_CVX | tabula probationis nomen clavis externa | Check table name of the foreign key | CHECKTABLE | CHAR 30 | DD02L |
| FRKART | Dependency factor for semantic foreign keys | FRKART | CHAR 4 | — | |
| CLASFIELD | Internal classification of foreign keys: partial, etc. | CLASFIELD | CHAR 30 | — | |
| CMP_RLT_GEN | campus relatio genus | Values for classification field of CLAS relationship type | CLASVALUE | CHAR 10 | — |
| RLT_FNS | relatio fons | Cardinality of a relationship (left/source side) | CARDLEFT | CHAR 2 | — |
| RLT | relatio | Cardinality of a relationship | CARD | CHAR 2 | — |
| CHECKFLAG | No check in Screen Painter | CHECKFLAG | CHAR 1 | — | |
| ARE_CLS | area classis | Application Area — message class for the FK violation message | ARBGB | CHAR 20 | T100A |
| NUM_CVX | numerus clavis externa | Message number — the error message raised on foreign-key violation | MSGNR | CHAR 3 | T100 |
| SGN_CVX | signum clavis externa | DD: Flag whether inheritance is switched off for the foreign key | INCNOINHER | CHAR 1 | — |
Foreign keys
| Field | Check table | Check field |
|---|---|---|
ARBGB | T100A | ARBGB |
CHECKTABLE | DD02L | TABNAME |
TABNAME | DD02L | TABNAME |
FIELDNAME | DD03L | FIELDNAME |
MSGNR | T100 | MSGNR |