Merge statment

Question

does the merge statement would support 2 inserts on NOT MATCHED & MATCHED
Please how to achieve this.
thanks.
MERGE INTO audit2 e
USING audit1 h
ON (e.no = h.no)
WHEN NOT MATCHED THEN
INSERT (
NO
,NAME
,CREATED_USER
,CREATED_DATE
,MODIFIED_USER
,MODIFIED_DATE
,ARCH_TS
,EVENT_CD
VALUES (h.no ,h.name ,h.CREATED_USER , h.CREATED_DATE ,h.MODIFIED_USER,h.MODIFIED_DATE,systimestamp,'C' )
WHEN MATCHED THEN
INSERT (
NO
,NAME
,CREATED_USER
,CREATED_DATE
,MODIFIED_USER
,MODIFIED_DATE
,ARCH_TS
,EVENT_CD
VALUES (h.no ,h.name ,h.CREATED_USER , h.CREATED_DATE ,h.MODIFIED_USER,h.MODIFIED_DATE,systimestamp,'U' );
COMMIT;

Answer 1

Hi,
In MERGE, you can only INSERT when NOT MATCHED.
Are you trying to insert all the data from audit2 into audit1, regardless of whether it is matched or not, but to have the event_cd column of the new rows be 'U' when the new no matched one of the old nos, and have ev event_cd = 'C' otherwise?
If so:
INSERT INTO audit2 (no, name, ... event_cd)
SELECT  no
,     name
,     CASE
         WHEN  no IN  (
                             SELECT  no
                    FROM    audit2
         THEN  'U'
         ELSE  'C'
     END
FROM           audit1  h
LEFT OUTER JOIN      audit2      e  ON    e.no     = h.no
;The query below requires Oracle 10.1 (or higher).
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables involved, and also post the results you want from that data.
Since you're asking about a DML statement, the sample data should be the contents of the tables before the DML, and the results will be state of the changed table(s) when everything is finished.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using.