The accuracy of product table data is critical and the Brwebean's. owner wants to have an audit file that contains information regarding all DML activity on the BB_PRODUCT table. This information should indicate the user id of the user running a DML statement, the date, the original values of the changed rows and the new values. The audit table needs to track specific columns of concern, including PRODUCTNAME, PRICE, SALESTART, SALEEND, and SALEPRICE. Create a table named BB_PRODCHG_AUDIT that can hold the relevant data. Then create a trigger named BB_AUDIT_TRG that fires on update to this table whenever one of the specified columns in the BB_PRODUCT table is changed.
Use the following update statement to test your trigger. Then, complete a rollback and disable the trigger when completed so that it does not affect other assignment questions.
Update bb_product set salestart = '05-MAY-03', saleend = '12-MAY-03', saleprice = 9 where idproduct = 10;