Ignores all page changes  since  the  last  COMMIT  or  ROLLBACK
 command.   Altered  pages are stored in virtual memory until you
 issue a COMMIT or ROLLBACK command.  ROLLBACK tells RdbALTER  to
 ignore all changes since the last COMMIT or ROLLBACK command was
 issued.

 Do not follow a ROLLBACK command with a DEPOSIT command  without
 first respecifying your location with a DISPLAY or PAGE command.

 RdbALTER does not allow you to issue an EXIT command  until  all
 altered pages are either committed or rolled back.

Additional information available:

FormatExamples

 ROLLBACK ──>

 Example 1

 The following example rolls back all page changes entered  since
 the last COMMIT or ROLLBACK was issued.

 RdbALTER> ROLLBACK