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Dec 08, 2009 at 02:07 PM

Table Mappings

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Hi all,

Was looking into the ABAP technical tables and

have a few questions regarding these tables.

[1]

what is the difference between Data Dictionary and ABAP dictionary.Are they same?

I know what an ABAP dictionary is.What is a data dictionary then?

[2]

How are the SD tables related.For example:-

If I look into a diagram of "SalesDocumentHeader"(See attcahed figure)- I see the VBAK table as base table and VBAP,VEPVG,VBEP as derived tables(With the arrows,Do they also have a meaning.Some arrows are there in both directions).

what does this Base - derived relationship mean.

Should I have to look this in an object oriented way as in programming,so that if I access a derived table,I could access the fields in the Base table.

Would appreciate if someone could answer the above questions.

Thanks

P