Identifies a collating sequence that has been defined using the
    OpenVMS National Character Set (NCS) utility. Use the CREATE
    COLLATING SEQUENCE statement to identify collating sequences
    other than the database default collating sequence that you plan
    to use with certain domains. (The default collating sequence for
    a database is established by the COLLATING SEQUENCE IS clause in
    the CREATE SCHEMA statement; if you omit that clause at database
    definition time, the default sequence is ASCII.)

    You must enter a CREATE COLLATING SEQUENCE statement specifying a
    collating sequence before you enter the name of that sequence in
    any of the following statements:

    o  CREATE DOMAIN . . . COLLATING SEQUENCE

    o  DROP COLLATING SEQUENCE

    o  ALTER DOMAIN . . . COLLATING SEQUENCE

    o  SHOW COLLATING SEQUENCE