How I can do this update....merge ?

Question

I have this query
select GORADID_ADID_CODE from GORADID a
where exists
(select * from goradid_cvt  b
where a.goradid_pidm = b.goradid_pidm
and a.GORADID_ADID_CODE <> b.goradid_adid_code  ) I need to do an update the GORADID_ADID_CODE on the table GORADID
needs to be update with the GORADID_ADID_CODE from the table goradid_cvt
I know a pl\sql precedure will do it , I know how to do it, but I just want to write a little code like merge, perhaps
The query can be change to
select GORADID_ADID_CODE from GORADID_cvt a
where exists
(select * from goradid   b
where a.goradid_pidm = b.goradid_pidm
and a.GORADID_ADID_CODE <> b.goradid_adid_code  )

Answer 1

Actually this does not work
I have in the table GORADID
GORADID_PIDM     GORADID_ADDITIONAL_ID     GORADID_ADID_CODE     GORADID_USER_ID     GORADID_ACTIVITY_DATE     GORADID_DATA_ORIGIN
1210136     United States     CTZ1                      Conversion                                                                      03/06/2012 16:25:12                     Recruitment Plus
1210136     United States     CTZ2                      James                                                                       03/07/2012 10:43:10     Jamesin the CVT table GORADID_cvt
GORADID_PIDM     CONVERT_PIDM     GORADID_ADDITIONAL_ID     CONVERT_ADDITIONAL_ID     GORADID_ADID_CODE     CONVERT_ADID_CODE     GORADID_USER_ID     CONVERT_USER_ID
1210136     B0020     United States     United States     CTZ2     CTZ2     James     James
1210136     B0020     Australia                        Australia                         CTZ1     CTZ1     James     JamesI need to ended with an update exactly as the one in the cvt table
This is the code
MERGE INTO    goradid        dst
USING   (
SELECT   goradid_pidm
        ,        SUBSTR(A.goradid_adid_code,1,4) 
       ,        INITCAP(a.GORADID_ADDITIONAL_ID) aDDITIONAL_ID
       ,a.GORADID_ACTIVITY_DATE
       ,A.GORADID_USER_ID
       ,a.GORADID_DATA_ORIGIN
        FROM     goradid_cvt    a
       WHERE A.GORADID_CVT_STATUS LIKE 'U%'
     AND   EXISTS (
                             SELECT  1
                FROM    goradid   b
                    WHERE    a.goradid_pidm         = b.goradid_pidm
                 AND b.GORADID_ADID_CODE like 'C%'
                AND A.GORADID_PIDM = 1210136
                AND    substr(a.goradid_adid_code,1,4) !=  substr(b.goradid_adid_code,1,4))
                )  SRC
              ON    (src.goradid_pidm = dst.goradid_pidm)
             WHEN MATCHED THEN UPDATE
               SET  dst.goradid_adid_code = dst.goradid_adid_code,
                       dst.goradid_user_id =    dst.GORADID_USER_ID,
                       dst.goradid_additional_id = dst.goradid_additional_id,
                        dst.goradid_activity_date = trunc(sysdate),
                       dst.goradid_data_origin =  'James1'
               SELECT COUNT(*) ,
                       GORADID_CVT_STATUS
                       FROM  GORADID_CVT
                       GROUP BY  GORADID_CVT_STATUS the select stament returns
SELECT   goradid_pidm
        ,        SUBSTR(A.goradid_adid_code,1,4) 
       ,        INITCAP(a.GORADID_ADDITIONAL_ID) aDDITIONAL_ID
       ,a.GORADID_ACTIVITY_DATE
       ,A.GORADID_USER_ID
       ,a.GORADID_DATA_ORIGIN
        FROM     goradid_cvt    a
       WHERE A.GORADID_CVT_STATUS LIKE 'U%'
     AND   EXISTS (
                             SELECT  1
                FROM    goradid   b
                    WHERE    a.goradid_pidm         = b.goradid_pidm
                 AND b.GORADID_ADID_CODE like 'C%'
                AND A.GORADID_PIDM = 1210136
                AND    substr(a.goradid_adid_code,1,4) !=  substr(b.goradid_adid_code,1,4))
                )  SRC
{code)
returns1210136     CTZ1     Australia      3/7/2012     James     James
when I run the merge updates the two records, I nned to ended upating the  
I need to update the table GORADID like this GORADID_PIDM     CONVERT_PIDM     GORADID_ADDITIONAL_ID     CONVERT_ADDITIONAL_ID     GORADID_ADID_CODE     CONVERT_ADID_CODE     GORADID_USER_ID     CONVERT_USER_ID
1210136     B0020     United States     United States     CTZ2     CTZ2     James     James
1210136     B0020     Australia      Australia      CTZ1     CTZ1     James     James
Edited by: 893973 on Mar 7, 2012 8:55 AM