| MERGE INTO user_tab1 t1 |
| USING (select to_char(TIMESTAMP, 'yyyy-mm-dd') daily, CLUSTERNAME, RESULT, count(*) usage |
| from user_tab2 |
| where to_char(TIMESTAMP, 'yyyy-mm-dd') in ('2019-09-03') |
| group by to_char(TIMESTAMP, 'yyyy-mm-dd'), CLUSTERNAME, RESULT) t2 |
| on (t1.DAILY = t2.daily and t1.CLUSTERNAME = t2.CLUSTERNAME and t1.RESULT = t2.RESULT) |
| WHEN MATCHED THEN |
| UPDATE SET t1.USAGE = t2.usage |
| WHEN NOT MATCHED THEN |
| INSERT (t1.daily, t1.CLUSTERNAME, t1.RESULT, t1.usage) |
| VALUES (t2.daily, t2.CLUSTERNAME, t2.RESULT, t2.usage); |
