How to use if updating on nested column in triggers older white women dating younger black men

Posted by / 15-Jan-2020 01:15

How to use if updating on nested column in triggers

INSERT INTO vehicle_mfg_company_details VALUES (101,'Ford'); -- error INSERT INTO TABLE ( SELECT vw.vehiclelist FROM company_vehicles_view vw WHERE company_id = 101 ) VALUES (1, 'Eco Sport'); -- output SQL Error: ORA-25015: cannot perform DML on this nested table view column 25015.

00000 - "cannot modify a column which maps to a non key-preserved table" *Cause: An attempt was made to insert or update columns of a join view which map to a non-key-preserved table.

If multiple trigger actions are specified, they are grouped with begin and end.

See “Triggers and transactions” for a list of statements that are not allowed in a trigger definition.

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A trigger executes automatically when a user attempts a specified data modification statement on a specified table.

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