C++ libraries - libpgxx and postgresql

[Anonymous Remailer (austria)]

Hi all, 

I may need to put together some code to read from 
a postgresql database for processing by octave. 

I found an example for mysql (mysql.cpp) though 
none for postgresql. That suggests that while there 
may be some application that finds connection to 
a database as the best way of working, there is   
an easier or better way. 

So, before investing time and effort, a couple of 
questions: 
A) Is there a better way of reading and writing 
stored information to octave that does not use files.

B) Is a library already in existence for 
exchanging data with a postgresql database? 

TIA
Richard