在Oracle操作過程中經常會碰到同時向多個不同的表插入數據，此時用該語句就非常合適。All表示非短路運算，即滿足了第一個條件也得向下執行查看是否滿足其它條件，而First是短路運算找到合適條件就不向下進行。INSERT ALL WHEN PRod_category=’B’ THEN INTO book_sales(prod_id,cust_id,qty_sold,amt_sold) VALUES(prodUCt_id,customer_id,sale_qty,sale_price) WHEN prod_category=’V’ THEN INTO video_sales(prod_id,cust_id,qty_sold,amt_sold) VALUES(product_id,customer_id,sale_qty,sale_price) WHEN prod_category=’A’ THEN INTO audio_sales(prod_id,cust_id,qty_sold,amt_sold) VALUES(product_id,customer_id,sale_qty,sale_price) SELECT prod_category ,product_id ,customer_id ,sale_qty ,sale_price FROM sales_detail;Merging Rows into a TableMERGE INTO oe.product_information pi USING (SELECT product_id, list_price, min_price FROM new_prices) NP ON (pi.product_id = np.product_id) WHEN MATCHED THEN UPDATE SET pi.list_price =np.list_price ,pi.min_price = np.min_price WHEN NOT MATCHED THEN INSERT (pi.product_id,pi.category_id ,pi.list_price,pi.min_price) VALUES (np.product_id, 33,np.list_price, np.min_price);
在Oracle操作過程中經常會碰到同時向多個不同的表插入數據，此時用該語句就非常合適。All表示非短路運算，即滿足了第一個條件也得向下執行查看是否滿足其它條件，而First是短路運算找到合適條件就不向下進行。INSERT ALL
MERGE INTO oe.product_information pi
