What is the difference between delete and truncate of a table?

When we truncate a table the data can not be rolled back, the statement will be committed automatically. But when we delete a  table it can be  committed or rolled back.

DELETE is a DML statement but TRUNCATE is a DDL statement.

Example:

SQL> conn mereba/mereba@orcl
Connected.
SQL> insert into sttms_cust_account(ac_desc) values('Messi Dave');
 1 row created.
SQL> insert into sttms_cust_account(ac_desc) values('AMAN MULU');
 1 row created.
SQL> select * from sttms_cust_account;
    CUST_NO AC_DESC
---------- ------------------------------
         2 Messi Dave
         3 AMAN MULU

--delete a table data
SQL> DELETE FROM sttms_cust_account;
 2 rows deleted.

--roll back it
SQL> ROLLBACK;
 Rollback complete.
SQL> select * from sttms_cust_account;
    CUST_NO AC_DESC
---------- ------------------------------
         2 Messi Dave
         3 AMAN MULU

--delete table data
SQL> DELETE FROM sttms_cust_account;
 2 rows deleted.

--commit it
SQL> commit;  ----permanent change
 Commit complete.
SQL> select * from sttms_cust_account;
 no rows selected

---truncate it
SQL> TRUNCATE TABLE sttms_cust_account;
 Table truncated.
SQL> select * from sttms_cust_account;
 no rows selected
SQL>