Syntax options:

    BIND ON CLIENT SITE | BIND ON SERVER SITE

    Selects the execution model and environment for external routine
    execution.

    CLIENT site binding causes the external routine to be activated
    and executed in the OpenVMS database client (application)
    process. This is the default binding. This binding offers
    the most efficient execution characteristics, allows sharing
    resources such as I/O devices, and allows debugging of external
    routines as if they were part of the client application. However,
    this binding may suffer from address space limitations. Because
    it shares virtual memory with the database buffers, this binding
    is restricted to the client process system user environment, and
    prohibits external routine execution in cases of an application
    running with elevated privileges.

    SERVER site binding causes the external routine to be activated
    in a separate process from the database client and server. The
    process is started on the same node at the database process.
    This binding offers reasonable execution characteristics, a
    larger address space, a true session user environment, and has
    no restrictions regarding client process elevated privileges.
    However, this binding does not permit sharing resources such
    as I/O devices with the client (in particular, there is no
    connection to the client interactive terminal), and debugging
    of routines is generally not possible.