update multiple columns in pl/sql

To all:

Is there a better way to code the following statement ?

A= a*b;
B= a*b*c;         A,B,C are calculated values.
C=b*c;

update tab set (col1,col2,col3) =(select A,B,C from dual);

Thanks in advance, Ted Chyn Received on Sat Dec 13 1997 - 00:00:00 CST