How to update record of another table in oracle?

<br />
SQL> desc t1<br />
 Name         Null?    Type<br />
 -------------------------------<br />
 NO          NOT NULL NUMBER(38)<br />
 TID                  NUMBER(38)<br />
<br />
SQL> desc t2<br />
 Name          Null?    Type<br />
 ----------------------------------<br />
 TID           NOT NULL NUMBER(38)<br />
 NM                     CHAR(10)<br />
 NUM                    NUMBER(38)<br />
<br />
SQL> update t1,t2                         <br />
  2  SET t2.num=220333<br />
  3  where t1.tid=t2.tid<br />
  4  and t1.no=1<br />
  5  ;<br />

update t1,t2
*
ERROR at line 1:
ORA-00971: missing SET keyword

I want to update <num> column of t2 but using <no> column of table t1.

Tags: Oracle