... Introducing Transactions In Chapter 3, you saw how you can group SQL statements together into transactions. The transaction is then committed ... Commit() method. By default, transactions are rolled back. Always use the Commit() or Rollback() methods to explicitly indicate whether you want to commit or roll back your transactions. The output ... unit, or if there's a problem, roll back both changes. You'll be introduced to using transactions in ADO.NET in this section. There are three Transaction classes: SqlTransaction,...