⤷ BC-DWB-DIC-AC (Application Component) Activation Program, Conversion Program, DB Utility, MC, SPDD
⤷ SDIC (Package) ABAP Dictionary
|Short Description||Dependency factor for semantic foreign keys|
|Category of Dictionary Type||D||Domain|
|Type of Object Referenced||No Information|
|Domain / Name of Reference Type||FRKART|
|Data Type||CHAR||Character String|
|Search Help: Name|
|Search Help: Parameters|
|Default Component name|
|No Input History|
|Basic direction is set to LTR|
|No BIDI Filtering|
The dependency factor indicates the degree to which a dependent table is dependent on a referenced table (check table) by determining whether the foreign key field must contain a value in each record and whether this value can be changed without the identity of the record being lost.
The following dependency factors can be defined:
Identifying foreign key (ID)
When a dependent record is created, an entry occurring in the primary key of the check table must be made in the foreign key fields. This reference may not be changed.
Foreign key to a text table (TEXT)
This dependency factor is a special instance of the identifying foreign key. The same conditions apply. However, in this case, the dependent table is a language-dependent table for the referenced table. The key of the text table is composed of the key of the referenced table and a language key (field SPRAS from table T002).
Obligatory foreign key (OBL)
When you create a dependent record, an entry must be made in the foreign key fields which occurs in the primary key of the check table. This reference can be changed at a later time. The new values must also occur in the primary key of the check table.
Optional foreign key (OPT)
When you create a dependent record, an entry can be made in the foreign key fields but does not have to be made. A reference may be changed. It is also possible to delete an existing entry.
|Last changed by/on||SAP||19970321|
|SAP Release Created in|