Specifies a collating sequence to be used for all fields in the
    database. Sequence-name is a name of your choosing; use this
    sequence-name in any subsequent statements that refer to this
    collating sequence.

    The OpenVMS National Character Set (NCS) Utility provides
    a set of pre-defined collating sequences and also lets you
    define collating sequences of your own. The COLLATING_SEQUENCE
    clause accepts both pre-defined and user-defined NCS collating
    sequences.

    If you do not specify a collating sequence, the default is ASCII
    (shown as "no collating sequence" in some displays).