VMS Help MERGE, Specification File Qualifiers, /CHECK_SEQUENCE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Specifies whether or not the sequence of records in the input
    files is checked when files are merged. By default the sequence
    of records is not checked. Use only with the MERGE command.

    Formats

      /CHECK_SEQUENCE

      /NOCHECK_SEQUENCE

  Additional Information (explode) :

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• Example