what is cardinality?how it works in ABAP?
Answer Posted / rohit.sapmm
The cardinality (n:m) describes the foreign key
relationship with regard to the number of possible
dependent records (records of the foreign key table) or
referenced records (records of the check
table).
The left side (n) of the cardinality is defined as follows:
n=1: There is exactly one record assigned to the check
table for each record of the
foreign key table.
n=C: The foreign key table may contain records which do
not correspond to any record of
the check table because the foreign key field is empty.
This can occur for example if the
field of the foreign key table is optional, in which case
it does not have to be filled.
The right side (m) of the cardinality is defined as follows:
m=1: There is exactly one dependent record for each
record of the check table.
m=C: There is at most one dependent record for each
record of the check table.
m=N: There is at least one dependent record for each
record of the check table.
m=CN: There may be any number of dependent records for
each record of the check
table.
Is This Answer Correct ? | 12 Yes | 1 No |
Post New Answer View All Answers
Explain the advantages and disadvantages of different types of bdc's?
What is the meaning of table buffer? This buffer is used by which type oftable?
How to Modify Layout set for RVORDER01 for printing sales order confirmation. plz mention the detail coding Tahnks, Rahul
what are the critical issues u face in ur project?
What is the maximum number of match code id's that can be defined for one match code object? : abap data dictionary
did u done enhancement framework?how u implemented?
Does the table can have multiple foreign keys?
Can a posting run be deleted? : sap abap hr
What are standard layouts sets in the sap script?
I am getting the (first) page number and the remaining records displayed in another list in another page BUT the PAGE Number is not displayed? What is the code/solution?
Explain what is step-loop? Explain all the steps?
What are the various events associated with screen programming?
Why is pretty printer user in abap?
What is the meaning of client independent?
Update function modules are classified as either v1 or v2. Which type of update is performed first and in what mode (asynchronously, synchronously or locally) can each type be processed in?