Cancels all updates, insertions, and deletions for the current transaction and ends the transaction.
Syntax:
procedure Rollback;
Description:
Call Rollback to cancel all updates, insertions, and deletions for the current transaction
and to end the transaction. The current transaction is the last transaction started by calling
StartTransaction.
 | Before calling Rollback, an application may check the status of the
InTransaction property. If an application calls
Rollback and there is no current transaction, an exception is raised. |