When I use Merge duplicate Values

Question

Hi
When I use MERGE for to INSERT It is duplicating values, I put condition in ON
MERGE                         /*+  append nologging */ INTO sysadm.ps_loc_item_sn_zz2 t3
   USING (WITH tmp_ps_loc_item AS
               (SELECT loc_cntr_id_sn, setid, companyid, effdt, setid_product, loc_product_sn,
                       ROW_NUMBER () OVER (PARTITION BY loc_cntr_id_sn, setid, companyid, effdt, setid_product, loc_product_sn ORDER BY linha)
                                                                                      seqno_item_sn,
                       loc_item_status, NULL ken_data_ativ_sn, NULL inactive_date_sn,
                       'LO' cntrct_origin_sn, SYSDATE row_added_dttm,
                       'CARGA PS 29052007' row_added_oprid, SYSDATE row_lastmant_dttm,
                       'CARGA PS 29052007' row_lastmant_oprid, 0 syncid, NULL syncdttm,
                       ken_component_sn
                  FROM (SELECT t1.*, ROWNUM linha
                          FROM sysadm.tmp_equip_crm t1,
                               (SELECT     LEVEL l
                                      FROM DUAL
                                CONNECT BY LEVEL <= 100)
                         WHERE l <= t1.qtd) )
          SELECT t2.loc_cntr_id_sn, t2.setid, companyid, effdt, setid_product, loc_product_sn,
                 t2.seqno_item_sn, loc_item_status, t5.ken_data_ativ_sn, inactive_date_sn,
                 cntrct_origin_sn, row_added_dttm, row_added_oprid, row_lastmant_dttm, syncid,
                 syncdttm, t2.ken_component_sn
            FROM tmp_ps_loc_item t2, sysadm.tmp_data_ativa t5
           WHERE t2.loc_cntr_id_sn = t5.loc_cntr_id_sn(+)
             AND t2.ken_component_sn = t5.ken_component_sn(+)
             AND t2.loc_item_status = t5.loc_item_status_sn(+)
             AND t2.seqno_item_sn = t5.seqno_item_sn(+)) t4
   ON (    t3.loc_cntr_id_sn = t4.loc_cntr_id_sn
       AND t3.setid = t4.setid
       AND t3.companyid = t4.companyid
       AND t3.effdt = t4.effdt
       AND t3.setid_product = t4.setid_product
       AND t3.loc_product_sn = t4.loc_product_sn
       AND t3.seqno_item_sn = t4.seqno_item_sn)
   WHEN MATCHED THEN
      UPDATE
         SET t3.syncid = 0
   WHEN NOT MATCHED THEN
      INSERT (loc_cntr_id_sn, setid, companyid, effdt, setid_product, loc_product_sn, seqno_item_sn,
              loc_item_status_sn, ken_data_ativ_sn, inactive_date_sn, cntrct_origin_sn,
              row_added_dttm, row_added_oprid, row_lastmant_dttm, row_lastmant_oprid, syncid,
              syncdttm)
      VALUES (t4.loc_cntr_id_sn, t4.setid, t4.companyid, t4.effdt, t4.setid_product,
              t4.loc_product_sn, t4.seqno_item_sn, loc_item_status, t4.ken_data_ativ_sn,
              t4.inactive_date_sn, t4.cntrct_origin_sn, t4.row_added_dttm, t4.row_added_oprid,
              t4.row_lastmant_dttm, t4.ken_component_sn, t4.syncid, t4.syncdttm);

Answer 1

I don't understand what you mean exactly?
When an SQL statement encounters an error then all
its work is rolled back ...
So why do you expect that it worùs otherwise?simply
WHEN MATCHED THEN      UPDATE         SET t3.syncid = 0Only