Description of the illustration update.eps

UPDATE [ hint ]
   { dml_table_expression_clause
   | ONLY (dml_table_expression_clause)
   } [ t_alias ]
   update_set_clause
   [ from_using_clause ]
   [ where_clause ]
   [ wait_clause ]
   [ order_by_clause ]
   [ returning_clause ]
   [ error_logging_clause] ;