Multiple Raw updation

Question

Hi,
I am using oracle 8i Database. I have two tables related to CUSTOMER. (Say CUST_A, CUST_RA).
Both having common column like customer_number, Customer_Name. Both table customer_numbers are same.
But some customer_names are different.
So I want to Update CUST_A with the same Customer_name of CUST_RA. ie I need to update Many raw with single query. Is there any option for this problem in oracle8i. Please send a soluton.
With regards Naseer.

Answer 1

   UPDATE CUST_A  a
         SET  (col1, col2, col3)   =   ( SELECT  val1, val2, val3
                                 FROM CUST_RA  ra
                               WHERE a.matching_column = ra.mathcing_column
        WHERE    a.extra_column = some_condition;
     UPDATE ( select b.col1, b.col2, b.col3, e.val1, e.val2, e.val3
                     from CUST_A b,  CUST_RA  e
                   where e.matching_column = b.matching_column
         ) temp
        set (col1, col2, col3) = (val1, val2, val3);If you are lucky enough to have Oracle 9i, then you can try MERGE statements....