Dropping removes the table from the database.
To drop a table:
Select Drop Table from the table's pop-up menu or select Object>Delete from the menu bar.
Click Yes.
If you drop a table outside PowerBuilder, information remains in the system tables about the table, including extended attributes for the columns.
To delete orphaned table information from the extended attribute system tables:
Select Design>Synch Extended Attributes from the menu bar and click Yes.
If you try to delete orphaned table information and there is none, a message tells you that synchronization is not necessary.