Renaming columns

You rename a column with ALTER TABLE as follows:

ALTER TABLE [schema.]table-name  RENAME [ COLUMN ] column-name TO new-column-name

The following example renames a column in the Retail.Product_Dimension table from Product_description to Item_description:

=> ALTER TABLE Retail.Product_Dimension
    RENAME COLUMN Product_description TO Item_description;

If you rename a column that is referenced by a view, the column does not appear in the result set of the view even if the view uses the wild card (*) to represent all columns in the table. Recreate the view to incorporate the column's new name.