pg_dump syntax

Folks,

Sorry to be a bother, but I can't figure out how to do pg_dump of a database with jdbc.  I've tried a variety of syntaxes to no avail and searched through the archives and the web with no help.  Here is my last attempt

 

SELECT pg_dump -Fc -f E:\backup\test.pgb npbase

 

What am I doing wrong?

 

Thanks

Michael Schmidt