ECS2S is available! Its predecessor has been in production for 10 yrs.

Runs on most-Unix, Linux, and Win32 platforms via Java JVMs.
Requires JRE 1.4.2_08+.
Requires TCP/IP.

Known to work with:

Oracle, SQL and Postgres

AIX, HP-UX, Solaris, Linux, Win32, OSX, BSD

Check it out.

You may request a copy. Then download.