Install SUN/Oracle JDK and PostgreSQL via zypper or Yast.

Download pljava here http://pgfoundry.org/frs/?group_id=1000038&release_id=1024

Create a directory for example /usr/src/pljava and extract pljava there.

create /etc/ld.so.conf.d/postgres.conf with this two lines in it if your using …

This tutorial explains a basic configuration using PostgreSQL and CentOS. For detailed information about configuration parameter please read the PostgreSQL documentation which is very good organized.

First thing you should do is updating your system to the last patch level. Be sure all the other installed software on this system …