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.