Merge SQL multiple insert statement is not an option

Question

So, the continaution of another question...

I have merge which task is to create the junction table rows from an existing table which only can represent 1-1 connection between entities (PROJECT) and from a table which can represent N-1 connecton (worker) the junction table is (PROJECT-WORKER), everyproject should have a dedicated leaders, and every worker should have a project but now i should have an n-n connection... This merge would do the job:

But unfortunately, multiple matched then insert branch is not a "feature" in sql, how can i workout this problem. The original query---)

MERGE INTO WORKERPROJECT TARGET
USING (SELECT distinct
               w.worker_id,
               w.worker_type,
               w.project_id worker_project_id, 
               p.project_id project_project_id,
               p.dedicated_project_leader,
               p.dedicated_lead_developer,
               p.dedicated_lead_consultant,
               p.dedicated_supervisor
       from WORKER w 
       join PROJECT p on w.project_id = p.project_id
      ) SOURCE
   ON (SOURCE.worker_type is null)
 WHEN NOT MATCHED THEN INSERT (TARGET.FK_WORKER_ID, TARGET.FK_PROJECT_ID,TARGET.IS_ACTIVE,POSITION) 
  VALUES (SOURCE.WORKER_ID,SOURCE.worker_project_id,'ACTIVE',SOURCE.worker_type);
 WHEN NOT MATCHED THEN INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION)
  VALUES (SOURCE.dedicated_project_leader,SOURCE.project_project_id,'ACTIVE','PROJECTVEZETŐ');
 WHEN NOT MATCHED THEN INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION)  
  INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION) VALUES (SOURCE.dedicated_lead_developer,SOURCE.project_project_id,'ACTIVE','FEJLESZTŐVEZETŐ');
 WHEN NOT MATCHED THEN INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION)
  INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION) VALUES (SOURCE.dedicated_lead_consultant,SOURCE.project_project_id,'ACTIVE','KONZULENSVEZETŐ');
 WHEN NOT MATCHED THEN INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION)
  INSERT (FK_WORKER_ID, FK_PROJECT_ID,IS_ACTIVE,POSITION) VALUES (SOURCE.dedicated_supervisor,SOURCE.project_project_id,'ACTIVE','SUPERVISOR');

Answer 1

Actually you can. Thanks to the insert all http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9014.htm#i2095116

Answer 2

If you need to perform multiple insert using merge then add the columns from different table into intial select. Something like this :

`MERGE INTO regional_dummy a 
USING (SELECT c.ID as IDNO FROM   region_country c    WHERE c.parent_id = '2' ) b
ON ('true' = 'false')
--WHEN MATCHED THEN UPDATE <TODO>
WHEN NOT MATCHED THEN
INSERT
(id,REGIONAL_userid,REGIONAL_NAME,REGIONAL_EMAIL,CREATE_DATE,CREATED_BY,REGION_ID,    COUNTRY_ID,PRODUCT_ID,ACTIVE,REPLACE_FLAG0)
VALUES    (REGIONAL_SEQ.nextval,'12345rg','userName','userEmailId',sysdate,  'rgrover0','2',b.IDNO,'m_product_region','Y' ,'N');`