SQL> CREATE TABLE tab1 (dateval DATE, charval CHAR(10), varcharval VARCHAR2(10));

Table created.

SQL>
SQL> INSERT INTO tab1 VALUES (sysdate, 'qwerty', 'qwerty');

1 row created.

SQL>
SQL> SELECT dateval,    DUMP(dateval),
  2         charval,    DUMP(charval),
  3         varcharval, DUMP(varcharval)
  4  FROM   tab1;

DATEVAL     DUMP(DATEVAL)
----------- --------------------------------------------------
CHARVAL     DUMP(CHARVAL)
----------- --------------------------------------------------
VARCHARVAL  DUMP(VARCHARVAL)
----------- --------------------------------------------------
23-NOV-2004 Typ=12 Len=7: 120,104,11,23,17,45,30
qwerty      Typ=96 Len=10: 113,119,101,114,116,121,32,32,32,32
qwerty      Typ=1 Len=6: 113,119,101,114,116,121