Table A contains a field called "DOCNUMBR", while Table B contains a field called "APFRDCNM".
In Table A, one row contains a value in "DOCNUMBR" that is in Table B's "APFRDCNM" field twice (i.e. the same value is in two rows).
For Table A's "DOCNUMBR", I want to select the second value in Table B's "APFRDCNM".
How do I do that?