Insert all for multiple oracle tables (column-to-row)

Oracle multi-table insert all statement: SQL code create table ORDERS (CUSTOMER_ID NUMBER, SUM_ORDERS NUMBER); create table small_customers (CUSTOMER_ID NUMBER, SUM_ORDERS NUMBER ); create table medium_customers (CUSTOMER_ID NUMBER, SUM_ORDERS NUMBER); create table large_customers (CUSTOMER_ID NUMBER, SUM_ORDERS NUMBER); create table order_sums (CUSTOMER_ID NUMBER, SUM_ORDERS NUMBER ); SQL code insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (1000, 10); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (1001, 20); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (1002, 30); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (800, 5); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (900, 6 ); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (700, 7); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (10000,100); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (20000,200); insert into ORDERS (CUSTOMER_ID, SUM_ORDERS) values (30000,300); www.2cto.com SQL code insert into ORDER_SUMS (CUSTOMER_ID, sums, MEDIUM_SUM_ORDERS, sums) values (1000, 10, 20, 30); insert into ORDER_SUMS (CUSTOMER_ID, sums, MEDIUM_SUM_ORDERS, sums) values (900, 1, 2, 3); insert into ORDER_SUMS (CUSTOMER_ID, sums, MEDIUM_SUM_ORDERS, sums) values (1, 10000,100,200,300); 1. insert to multiple tables usage SQL code insert all when customer_id <1000 then into small_customers when customer_id> = 1000 and customer_id <10000 then into medium_customers else into large_customers select customer_id, sum_orders from orders; www.2cto.com 2. insert all into small_mers MERs (mermer_id, sum_orders) values (customer_id, orders) into values (customer_id, sum_orders) values (customer_id, orders) into small_mers MERs (customer_id, orders, sum_orders) values (customer_id, large_sum_orders) select customer_id, small_sum_orders, medium_sum_orders, large_sum_orders from order_sums;