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예1) MERGE INTO customer C USING cust_src s ON (c.customer_id = s.src_customer_id) WHEN MATCHED THEN UPDATE SET c.cust_address = s.cust_address WHEN NOT MATCHED THEN INSERT (customer_id, cust_first_name, ...) VALUES (src_customer_id, src_first_name, …); |
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MERGE INTO Temp1 a USING ( select first from Temp2) t ON (a.first = t.first) WHEN MATCHED THEN UPDATE SET second = 'second', third = 'third', WHEN NOT MATCHED THEN INSERT (first,second,third) VALUES ('first','second','third') ;
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