linking between tables in abap data dictionary

Question

I am learning abap, I am unable to build the logic without knowing the table linking in abap, but I know the related fields.

(LIPS-VGBEL = VBAK-VBELN, LIPS-VGPOS = VBAP-POSNR) this all are different fields how this are equal please clarify my doubt.

Answer 1

They are equal, because they have the same domain.

Go to se11 -> lips -> vgbel -> column data elemnt vgbel If you are doubleklicking, you see, that the domain is vbeln

This is the same domain like the domain of the vbak-vbeln. It's the same with vbap-posnr and lips-vgpos.

It's still the same domain.

I hope it helped...