SAP ABAP Data Element FRKART (Dependency factor for semantic foreign keys)
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-DWB-DIC-AC (Application Component) Activation Program, Conversion Program, DB Utility, MC, SPDD
     SDIC (Package) ABAP Dictionary
Basic Data
Data Element FRKART
Short Description Dependency factor for semantic foreign keys  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type FRKART    
Data Type CHAR   Character String 
Length 4    
Decimal Places 0    
Output Length 4    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short  
Medium 18 Dependency Factor 
Long 20 Dependency Factor 
Heading DepFac 
Documentation

Definition

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.

History
Last changed by/on SAP  19970321 
SAP Release Created in