The ALTER VIEW statement allows for the modification of an existing view in the database. This could include renaming the view or changing the name of a column within the view. Note that this statement does not allow for changing the query that defines the view.
Syntax
The syntax for the ALTER VIEW statement to rename a view is:
ALTER VIEW current_view_name RENAME TO new_view_name;
And the syntax to rename a column in a view is:
ALTER VIEW view_name RENAME COLUMN current_column_name TO new_column_name;
In both syntaxes, current_view_name and view_name are the names of the existing view that you wish to alter. The new_view_name is the new name you wish to assign to the view. current_column_name is the name of the column in the view that you wish to rename, and new_column_name is the new name you wish to assign to the column.
Please note:
- You need the necessary privileges to alter a view.
- Ensure the new view name or column name does not conflict with existing view or column names.
- The renaming of a view or a column will only affect the name of the view or the column, not its contents.
Example
To rename a view:
ALTER VIEW old_view RENAME TO new_view;
This ALTER VIEW statement renames the view ‘old_view’ to ‘new_view’.
To rename a column in a view:
ALTER VIEW my_view RENAME COLUMN old_column TO new_column;
This ALTER VIEW statement renames the column ‘old_column’ in the ‘my_view’ view to ‘new_column’.
