The following lines contain the word 'select', 'insert', 'update' or 'delete':
'SELECT'); --statement types
'INSERT, UPDATE'); --statement types
'EDR_DOCUMENTS_DELETE', --policy name
null, --function schema
'EDR_POLICY_FUNCTION_PKG.PSIG_DELETE', --policy function
'DELETE'); --statement types
DBMS_RLS.DROP_POLICY('EDR', 'EDR_PSIG_DOCUMENTS', 'EDR_DOCUMENTS_DELETE');