Altering a View
Views can typically not be altered; they must be dropped and recreated. You can:
- Select the view in the Databases tree,
 - Double-click the view node to open its Object View tab,
 - Open the DDL sub tab,
 - Select Copy to New Editor from the DDL tab's right-click menu, which opens an SQL Commander tab with the DDL,
 - Remove the CREATE VIEW part in the SQL Commander editor so you are left with just the SELECT statement,
 - Load the SELECT statement into the Query Builder and alter it graphically,
 - Launch the Drop View assistant from the view node's right-click menu, and click Execute to drop it,
 - Create the new view from the altered SELECT statement.