Selects one of three predefined collating sequences for character
    key fields, or specifies the name of a National character set
    (NCS) collating sequence to be used in comparing character keys.
    Sort arranges characters in ASCII sequence by default; the EBCDIC
    and Multinational sequences can also be used.

    High-performance Sort/Merge: The high-performance Sort/Merge
    utility currently supports all collating sequences except NCS.

    Formats

      /COLLATING_SEQUENCE=type

      /COLLATING_SEQUENCE=cs-name