Question: i have an invoice view and a detail table help please (NOTE) THE INVOICE IS A VIEW NOT A TABLE YOU INSERT OR DELETE IN

i have an invoice view and a detail table
help please
(NOTE)
THE INVOICE IS A VIEW NOT A TABLE YOU INSERT OR DELETE IN
BUT THE DETAIL IS A TABLE
in pl/sql
9) make the database more secure by un allowed for any user to modify(apply dml) invoice master and detail table on specific date e.g. 20-2-2022 by using statement trigger
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