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The method to update views using subquery (select statement) is as follows:

1. Start by creating a new view or finding an existing view that needs to be updated.

2. Identify the columns that need to be updated and the criteria for selecting the rows for updating.

3. Write a subquery that selects the rows to be updated and the new values for the columns.

4. Use the subquery in an UPDATE statement to modify the rows in the view.

5. Verify the changes by executing a SELECT statement on the view.

Note: it is important to be cautious when updating views, as the underlying data in the tables can be affected. It is recommended to have a backup of the data before making any updates.