External Program Executing in Separate Address Space

• In the External Address Space:

  • extproc is called either by /sh_libs/extlib.so or Listener

  • extproc calls to the Inter-Language Method Service within the Oracle Address Space

• In the Oracle Address Space:

  • Inter-Language Method Service accesses Oracle Database through Oracle Server

  • Inter-Language Method Service calls to the Listener or extproc within the External Address Space