Alias Alter Option

Alter Alias enables alteration of existing aliases. Use Alter Alias to alter an alias's name, location, label, or comment. DB2 does not have an ALTER ALIAS statement. For DB2 to make alias changes to fields other than the label and comments, the alias must be dropped and re-created.  makes changes by dropping and recreating the alias.
carcudb2
Alter Alias enables alteration of existing aliases. Use Alter Alias to alter an alias's name, location, label, or comment. DB2 does not have an ALTER ALIAS statement. For DB2 to make alias changes to fields other than the label and comments, the alias must be dropped and re-created. 
CA RC/Update™ for DB2 for z/OS
makes changes by dropping and recreating the alias.
A table/view or alias listing can be accessed using selection criteria. The screen flow for an Alter session is similar to a Create session.
The Alias Alter screen displays the values used to create the alias. The fields for this screen are similar to those on the Alias Create screen. Change fields according to the procedure outlined in the Create Alias. Once changes have been made, press F3 (End) to process the alter. If several aliases were chosen, they are processed in the same order as they appear on the Selection panel. After the processing of the first alias has been confirmed, press F3 (End) for the next alias.
After making changes and pressing F3 (End), the Confirmation screen appears. Accept, edit, or reject the DDL to be used to drop and re-create the aliases. 
If more than one alias was selected, each alias is processed individually. Processing occurs in the same order as the aliases are listed on the Selection panel. After confirming the processing of the first alias, press F3 (End) for the Alter Alias screen with the next alias.
The DDL is executed if Enter is pressed. When the Batch Processor is complete, press F3 (End) to return to the Main Menu.