sql - How to insert date in a table column with a trigger. (ORACLE) -

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essentially wish create trigger keeps track , edits date_created column of specific row after every insert or update.

these columns in table:

| customer_id | store_id | quantity | date_created |

the customer_id , store_id primary key of table

what have far:

create or replace trigger date_trig before insert on customer_table each row  declare begin  -- assume date set or edited  end;

i brand new pl/sql struggling actual body of trigger.

also, have structure of trigger correctly formed?

  1. use default sysdate on colum date_created suggested
  2. if insist use trigger, write :new.date_created := sysdate;

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