plsql - a triggers question in oracle -

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i kind of new triggers , cant figure out how resolve this.

after insert new row on specicfic table should influence other tables aswell.

so if add(insert) order on table includes 3 quantity, want 3 less in_stock in table(column)... in advance

assuming column , table names (order table column name : quantity , product_id key uniquely used identify order) .. should job

create or replace trigger trg_update_available    after insert on orders     each row begin    update in_stock       set quantity = quantity - :new.quantity       product_id = :new.product_id; end; /

note : commit; still present in code insert order.


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