SAP ABAP Data Element CARD (Cardinality of a relationship)

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	CARD
Short Description	Cardinality of a relationship

Data Type

Category of Dictionary Type	D	Domain
Type of Object Referenced		No Information
Domain / Name of Reference Type	CARD
Data Type	CHAR	Character String
Length	2
Decimal Places	0
Output Length	2
Value Table

Further Characteristics

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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	0
Medium	18	Cardinality
Long	20	Cardinality
Heading	4	Cd

Documentation

Definition

The cardinality (n : m) describes the foreign key relationship with regard to the number of possible dependent records involved (records of the foreign key table) or referred records (records of the check table).

The right side of the cardinality has the following significance:

• m = 1

  For each record of the check table there is exactly one dependent record.

• m = C

  For each record of the check table there is at most one dependent record.

• m = N

  For each record of the check table there is at least one dependent record.

• m = CN

  For each record of the check table there are any number of dependent records.

History

Last changed by/on	SAP	19970321
SAP Release Created in