ABAP Objects - Persistente Service M:N Relationship

[Former Member]

Hello Everybody,

In a lot of different books i  have read, that there is an option in the Persistence service of ABAP Object to realize a table relationship with M:N. I have searched a lot in the last days in the internet to discover it how to program it. But my result was that I have found nothing. Is here anybody to can support me or knows a source where I can find some help

Thanks

Markus

[ShyamPindiproli]

Hello Markus,

Are you referring to making an CRUD operations (Create/Read/Update/Delete) data wherein multiple tables have a relationship between them ?

There is a tool called the Mapping Assistant which is meant to link the Relational Database tables to the Object Oriented Persistent Classes. Make use of "Multi-Table" mapping or "Structure Mapping"

http://help.sap.com/saphelp_nw73/helpdata/en/49/e7087d1192088ce10000000a421937/frameset.htm

Regards,

Shyam

[Former Member]

But there i have no found no option to built a real M:n relatuionship with set and getter methods.

Do you know how to make it or to realize it?

thanks

markus

[ShyamPindiproli]

You can create a "Maintainance View" and use that in the Persistence Mapping Step. This way you canassign several database tables to one persistent class.

Regards,

Shyam

[Former Member]

That means, i will create a structure where all my subtable are included?

Table 1 Pizza: (ZPizza)

n:M

Table2 Backer (Structure ZBacker)

How i should implement it. I can't found how you mean that with Maintainance View.

Thanks

MARKUS