Postgres UPSERT

UPDATE "SC_Wonder"."TMining_New"
SET "FH_09_Q" = 100,
    "FH_09_Fe" = 20,
    "FH_09_ZnO" = 0,
    "FH_09_S" =0
WHERE "FMineObj_ID" = 7
  AND "FDate" = '2015-01-28' ;


INSERT INTO "SC_Wonder"."TMining_New" ( "FDate",
                                        "FMineObj_ID",
                                        "FH_09_Q",
                                        "FH_09_Fe",
                                        "FH_09_ZnO",
                                        "FH_09_S" )
SELECT '2015-01-28',
       7,
       100,
       20,
       0,
       0
WHERE NOT EXISTS
    (SELECT 1
     FROM "SC_Wonder"."TMining_New"
     WHERE "FMineObj_ID" = 7
       AND "FDate" = '2015-01-28');