drop table myblob;

create table myblob (
    id     int primary key,
    name    VARCHAR2(100),
    blb    BLOB(10k),
    byteblb    BLOB(10k),
    byteblb2    BLOB(10k)
);

commit;
insert into myblob values (
    1,
    'AAA',
    CAST('4444444444' as BLOB),
    CAST('7777777777' as BLOB),
    CAST('9999999999' as BLOB));

commit;