Displays information about the Oracle Rdb character sets.

                              Data
    Column Name               Type       Description

    RDB$LOWCASE_MAPPING       varbyte    Segmented string containing
                              list       a 256 byte table used for
                                         lowercasing characters
    RDB$UPCASE_MAPPING        varbyte    Segmented string containing
                              list       a 256 byte table used for
                                         uppercasing characters
    RDB$ASSOCIATED_           integer    Identifier of the associated
    CHARACTER_SET                        character set
    RDB$CHARACTER_SET_ID      integer    Character set identifier
    RDB$CHARACTER_SET_NAME    char(31)   Character set name
    RDB$CHARACTER_WILDCARD    integer    Character used as wildcard
                                         character
    RDB$FLAGS                 integer    Character set flags
    RDB$FORM_OF_USE           integer    Character set form-of-use
                                         indicator
    RDB$IDENTIFIER_           integer    Character set ID of the
    CHARACTER_SET                        indentifier character set
    RDB$MAXIMUM_OCTETS        integer    Maximum number of octets per
                                         character
    RDB$MINIMUM_OCTETS        integer    Minimum number of octets per
                                         character
    RDB$REPERTOIRE            integer    Character set repertoire
    RDB$SPACE_CHARACTER       integer    Character used as space
    RDB$STRING_WILDCARD       integer    Character used as string
                                         wildcard
    RDB$VERSION               integer    Version number of character
                                         set entry