1  –  COMMENT_IS

    Adds a comment about the collating sequence. SQL displays the
    text when it executes a SHOW COLLATING SEQUENCE statement in
    interactive SQL. Enclose the comment within single quotation
    marks (')  and separate multiple lines in a comment with a slash
    mark (/).

2  –  FROM library name

    Specifies the name of an NCS library other than the default. The
    default NCS library is SYS$LIBRARY:NCS$LIBRARY.

3  –  ncs-name

    Specifies the name of a collating sequence in the default NCS
    library, SYS$LIBRARY:NCS$LIBRARY, or in the NCS library specified
    by the library-name argument.

    The collating sequence can be either one of the predefined NCS
    collating sequences or one that you defined yourself using NCS.

4  –  sequence-name

    Specifies the name by which the collating sequence named in
    the ncs-name argument is known to the schema. The ncs-name and
    sequence-name arguments can be the same.

5  –  STORED_NAME_IS

    Specifies a name that Oracle Rdb uses to access a collating
    sequence created in a multischema database. The stored name
    allows you to access multischema definitions using interfaces,
    such as Oracle RMU, the Oracle Rdb management utility, that
    do not recognize multiple schemas in one database. You cannot
    specify a stored name for a collating sequence in a database that
    does not allow multiple schemas.