ORA-01732

Error: ORA-01732: data manipulation operation not legal on this view

Causa: An attempt was made to use an UPDATE, INSERT, or DELETE statement on a view that contains expressions or functions or was derived from more than one table. If a join operation was used to create the view or the view contains virtual columns derived from functions or expressions, then the view may only be queried.

Acción: UPDATE, INSERT, or DELETE rows in the base tables instead and restrict the operations on the view to queries.