Notes/Domino 4 and 5 Forum

Hi All
My lotus notes server is running on Sun Solaris.we want to create document from oracle database.
Oracle is in different machine.
Now i would like to know, which one can i use for better performance.
"lsxlc" or LEI
please let me know difference between these 2 and how can i connect oracle server.

if any help it's really great...

Thanks...